PDF Operator's Manual Case 721E Wheel Loader - 7 MB
The official operator's manual for the Case 721E Wheel Loader is a crucial resource for safe and efficient machine handling.
It details the location and function of all controls and instruments inside the cab.
Furthermore, it outlines daily maintenance checks and safety precautions that every operator must know.
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--- Page 1 ---
OPERATOR'S MANUAL
721E Tier3 Z-bar. [N7AE12500 - ]
721E Tier3 Z-bar Fertilizer. [ N8AE12547 - ]
721E Tier3 Z-bar Bagage suggar. [N8AE12525 - ]
721E Tier3 XT. [N8AE12517 - ]
Con - 48146993
Issue date September 2017
EN
--- Page 3 ---
1 - GENERAL INFORMATION
Read the operator's manual
Important information
• Each machine is supplied with a copy of this manual.
• This manual has been developed as a guide for the safe and proper use of the machine, as well as for its mainte-
nance. Always follow the recommendations in this manual to ensure the best performance, cost-effective operation
and long service life of your machine.
• The manual is in sections. For a list of sections, see the table of contents. Refer to the index at the back of this
manual for locating specific items about your machine.
• The "SAFETY INFORMATION" chapter contains important information about safety at the time of maintenance,
adjustments and safe operation of the machine, and also contains information about the use of safety messages
found throughout this manual.
• The "MAINTENANCE" chapter contains important information about lubrication, cleaning work, maintenance and
adjustments of the machine.
• The "SPECIFICATIONS" chapter contains important information about weights, dimensions, torques, and general
specifications of the machine.
• The remaining chapters provide operating instructions for the machine, its controls, instruments, and accessories,
and information about transport, storage and operation of the machine.
• READ THIS MANUAL COMPLETELY and make sure that you have learned how to operate the machine and its
controls correctly and safely. It is your responsibility to read and understand the operator's manual and other pro-
vided information before you start to operate the machine. This information includes the speed, brakes, steering,
stability and load characteristics of the machine.
• Do not operate this machine or perform maintenance work if you have not had appropriate training. Read and fully
understand all the instructions and warnings in this manual. Have all operators read this manual carefully.
• If you follow the basic safety procedures and precautions, you can avoid most accidents that relate to machine
inspection and maintenance services.
• Always see the Operator's Manual when you have doubts about any operating procedure of the machine. Read
and understand all the safety warnings contained in this manual and all the safety decals on the machine. Correctly
follow the maintenance procedures. See your Authorized CASE CONSTRUCTION Dealer if you have any doubts.
• DO NOT remove this manual from the machine. Make sure this manual is complete and in good condition. Con-
tact an Authorized CASE CONSTRUCTION Dealer if you need additional manuals or manuals in other languages.
Always keep the manual in its compartment.
• Your machine is compliant with current safety regulations, but the safety information in this manual does not replace
safety rules, insurance requirements, and federal, state or local laws. Make sure that your machine has all the
appropriate and certified equipment in accordance with these government codes or laws. Consult an Authorized
CASE CONSTRUCTION Dealer about changes to your machine.
• CASE CONSTRUCTION reserves the right to improve designs and change specifications at any time, without
obligation to install them on previously sold units. The specifications, descriptions, and illustrative materials here
correctly reflect the data known on the publication date, but may vary by region and are subject to change without
notice. Therefore, all content in this publication is subject to production variations. These variations can affect the
maintenance that you perform on the machine. Make sure that your Authorized CASE CONSTRUCTION Dealer
has provided complete and current information before you start to operate any machine.
• The illustrations may include optional equipment and accessories, and may not include all standard equipment.
• Dimensions and weights in this manual are only approximate.
• Additional safety messages are used in the text of the manual to show specific safety hazards. Pay attention.
1-3
--- Page 4 ---
1 - GENERAL INFORMATION
Fuel usage conditions
You must follow fuel usage conditions. Incorrect use can lead to severe damage to both the engine and the fuel
injection equipment.
The main concerns when operating with biodiesel are:
• Filter and injector blockage caused by poor fuel quality.
• Wear and corrosion of internal components from water content, which affects lubricity.
• Deterioration of some rubber sealing compounds in the fuel system.
• Biodiesel oxidation, which can lead to the formation of deposits that can harm the fuel injection system.
NOTICE: Problems in the engine fuel injection equipment associated with non-compliance with the following condi-
tions for biodiesel handling and maintenance will not be covered for warranty by CASE CONSTRUCTION.
Purchase biodiesel fuel from a trusted supplier who understands the product and maintains acceptable fuel quality.
Use biodiesel from BQ 9000 accredited suppliers to maintain the quality and consistency of the fuel. The BQ 9000
Quality Management Program is accredited by the National Biodiesel Board for producers and marketers of biodiesel
fuel. See the website at www.biodiesel.org for more information.
Biodiesel Fuel must be pre-blended by the supplier. Mixing biodiesel fuel blends on-site can result in an incorrect
mixture that may damage the engine and/or fuel system.
NOTICE: CASE CONSTRUCTION may void your warranty if an engine or fuel system problem results from poor fuel
quality due to improper blending. You and your fuel supplier are responsible that the right type of fuel and blend is
delivered and used.
Using an additive for Biodiesel
Despite strict standards for the manufacture of biodiesel in Brazil, fuel may present problems after some time in
storage, such as the formation of colonies of microorganisms, oxidation and crystallization in the cold. Although the
percentage of biodiesel blended with diesel fuel is small, the problems that can occur with the fuel cause major dis-
ruptions.
To avoid disruptions and possible damage to equipment, CASE CONSTRUCTION makes the following recommen-
dation:
Use a Biodiesel biocide additive for the purpose of combating the formation of colonies of microorganisms in the
machine's fuel system. The additive, as well as having biocidal properties, should also function as a lubricant and
antioxidant. Consult your CASE CONSTRUCTION dealer for detailed information on the concentration and frequency
of use of the additive.
1-13
--- Page 5 ---
2 - SAFETY INFORMATION
Inspect the machine
Walk around the machine and perform a visual inspection
before you climb into the cab and start operation.
Never start the engine or operate the machine if you notice
any failed parts or damaged parts.
SP0007 6
Access the operator's compartment safely
Always approach the machine from the front.
When you enter or exit the machine, always keep contact
with three points of support with the steps and handrail.
NOTE: This will make it safer for you to move your feet
and hands, which will help to prevent accidents.
Keep the steps and handrails clean and clear of debris.
NOTE: Accidents may result from slippery surfaces.
Do not use the control levers or hydraulic hoses as a sup-
port to enter or exit the machine.
NOTE: The control levers and hydraulic hoses are mov-
able parts. They do not provide safety as a support. In
addition, the control levers could inadvertently move and
cause unexpected movement of the machine or imple-
ments.
Never jump to enter or exit the machine.
Never mount or dismount a moving machine.
Do not hurry. Walk, do not run.
Always keep your head, body, limbs, hands and feet in-
side the operator’s compartment to reduce exposure to
external hazards.
Never exit the operator's compartment until the machine
has come to a complete stop and the engine is shut down.
2-5
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2 - SAFETY INFORMATION
Heating lines containing pressurized fluid
NOTICE: Flammable sprays can be generated by heating near lines containing pressurized fluid, resulting in severe
burns to those doing the repair and to bystanders.
• Do not cause heating by welding, or use open flames
near the components containing pressurized fluid or
other flammable materials.
• Install temporary fire protection to protect the lines and
other components of the machine when you perform a
welding procedure.
NOTE: Pressurized lines can be accidentally cut when
the heat goes beyond the area of the flame.
• Avoid heating lines containing flammable fluids
• Do not weld or torch cut lines that contain flammable
fluids.
SP0059 2
• Clean the lines to be welded or cut with non-flammable
solvents before welding or cutting them.
Remove the paint before welding or heating
NOTICE: Hazardous fumes can be generated when the paint is heated by the welding arc or torch flame. If inhaled,
these fumes may be harmful to your health.
• Do not breath in potentially toxic fumes and dust.
• Do all such work outside or in a well-ventilated area.
• Handle and dispose of waste from paints or solvents in
accordance with environmental regulations, laws, and
government codes.
• Remove the paint from the part to be welded before
welding or heating operations.
• When sanding or grinding the paint, avoid breathing in
the dust.
• Wear an approved respirator.
• If you use solvent or paint stripper, remove the stripper SP0060 3
with soap and water before welding operations.
• Remove solvent or paint stripper containers and other
flammable material from area.
• Allow the fumes to disperse for at least 15 min before
welding or heating operations.
2-15
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2 - SAFETY INFORMATION
Support, block, and protect the machine properly
• Do not perform maintenance work on a machine that is
not properly supported.
• Always support the implement on the ground before
starting the maintenance work.
• If it is necessary to perform maintenance on a machine
with the implement raised, make sure to support it
firmly.
• Do not support the machine on bricks, boards or other
material that could collapse under load.
• Do not perform maintenance work on a machine that is
supported solely by a jack.
• Lock the machine components that must be raised for SP0040 6
maintenance using appropriate lifting equipment.
• Always lock all moving components or parts of the ma-
chine that should be lifted for maintenance purposes
using adequate external lifting equipment as required
by local regulations.
• Do not allow anyone to pass or remain near or below a
raised attachment.
NOTE: Never move or stop the bucket above people or
a cab of another machine or truck.
• When the maintenance to be performed requires ac-
cess to areas that cannot be reached from the ground,
use a ladder or scaffolding.
• Workshop maintenance or field scaffolding should be
manufactured and maintained in accordance with the
safety regulations.
NOTE: If a ladder or scaffolding are not available, use
the machine handrails and steps.
• Perform any maintenance work with the greatest care
and attention.
• Do not place your head, body, limbs, hands, feet, or
fingers near the articulated cutting edges without the
necessary protection.
• Securely block the machine or any component that may
fall before working on the machine or component. If
possible, also use an auxiliary or backup blocking de-
vice.
NOTE: To prevent unexpected movement, securely
block the working elements whenever you service or
replace working tool parts such as cutting edges.
2-25
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2 - SAFETY INFORMATION
1 – “Sling Point” decal
Use these points to tie the machine during transport on a
trailer.
Failure to comply with this recommendation may result in
damage, serious injuries, or death.
Quantity: 4
139728A1
139728A1_A 3
These decals are installed on the front chassis, near the
attachment point of the front axle.
COIL17WEL0443AA 4
These decals are installed on the bottom of the
counterweight, on the right-hand and left-hand sides.
COIL17WEL0500AB 5
2-35
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2 - SAFETY INFORMATION
16 – “Hydraulic fluid reservoir pressurized” decal
Before you perform maintenance or repair services on
the hydraulic fluid reservoir, operate the loader control
lever in all positions to release the internal pressure of
the system.
At operating temperature, the hydraulic fluid can cause
burns if it comes into contact with the skin.
Quantity: 2
333269A1
333269A1_B2 39
This decal is installed on the left-hand and right-hand COIL17WEL0501AB 40
sides of the rear chassis, just below the cab.
COIL17WEL0390AB 41
2-45
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2 - SAFETY INFORMATION
Move this far
BRIL12SP0314A0A 5
Stop completely and wait
BRIL12SP0315A0A 6
Stop
Move one hand from one side to the other
BRIL12SP0379A0A 7
Emergency stop
Quickly move both hands from one side to the other.
BRIL12SP0380A0A 8
2-55
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3 - CONTROLS AND INSTRUMENTS
Backrest tilt adjustment
Pull the lever upward to release the backrest and move it
into the desired position.
Release the lever to lock the backrest in position.
RCPH10WHL084BAL 4
Slide adjustment
Lift the bar and adjust the position of the seat forward or
backward, as necessary.
Release the bar to lock the seat in position.
NOTE: Always make adjustments from the front center of
the adjustment bar.
RCPH10WHL092BAL 5
3-7
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3 - CONTROLS AND INSTRUMENTS
LEFT-HAND SIDE CONTROLS
Drive – (Control through the lever on the steering column)
NOTE: The steering column transmission control lever shifts the transmission gears from first through fourth gear.
The steering column transmission control lever also controls the direction of travel of the machine.
• To select a gear, rotate the handle grip to align the num-
ber indicator mark on the control lever.
• To keep the transmission in neutral (N), keep the lever
in the central position.
• To travel forward (F), lift the lever and push all the way
forward.
• To travel in reverse (R), lift the lever and pull all the way
back.
All the following steps are required to use the
transmission shift functions through the steering column
transmission lever:
COIL17WEL0427AA 1
1. Service brake pressure must be at operating temper-
ature.
2. The steering column transmission control lever must
be in neutral.
3. Push down on the bottom of the parking brake switch
to release the parking brake switch.
NOTE: If the parking brake was NOT set when the ma-
chine was shut down, the parking brake switch must
be set and released.
4. Place the transmission control lever in either forward
or reverse to move the machine.
RCIL10WHL193BAL 2
RCPH10WHL005BAL 3
3-17
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3 - CONTROLS AND INSTRUMENTS
Two-lever system with two-spool valve
A. Bucket control lever.
1. Unloads.
2. Loads.
3. Standby – The loader lift arm and bucket will not
move while the control levers are in this position.
When released, the control levers automatically re-
turn to the standby position.
NOTE: The operator must manually move the con-
trol lever from the float position to the standby po-
sition.
B. Lift arm control lever.
4. Float (Backstop) – In this position, the loader
bucket can follow the irregularities of the terrain
without movement of the control lever.
RCPH10WHL019BAH 4
5. Lowers the bucket.
6. Standby – The loader lift arm and bucket will not
move while the control levers are in this position.
When released, the control levers automatically re-
turn to the standby position.
NOTE: The operator must manually move the con-
trol lever from the float position to the standby po-
sition.
7. Raises the bucket.
C. “F-N-R” switch – This switch allows the operator to
put the transmission in forward, neutral, or reverse
gears 87536092_A 5
NOTE: To activate this auxiliary “F-N-R” switch, the
proper sequence must be followed. The primary shift
lever must be in the neutral position before you use
the auxiliary “F-N-R” switch. Push the switch forward
to place the transmission in forward gear. Place the
switch in the middle position to place the transmission
in neutral. Pull the switch backward to put the trans-
mission in reverse.
D. “kickdown” downshift button – Drops the transmission
down one gear at a time.
NOTE: See “Transmission operation” for movement of
the machine after start-up.
3-27
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3 - CONTROLS AND INSTRUMENTS
Critical warnings
Display Description Corrective Action
Engine Oil Pressure Low engine oil pressure. Stop the machine safely and turn the engine
Below 10 psi. OFF immediately. Contact an authorized CASE
CONSTRUCTION dealer.
Brake pressure Low brake pressure. Stop the machine safely and turn the engine
OFF immediately. Contact an authorized CASE
CONSTRUCTION dealer.
Auxiliary steering system Low pressure in the auxiliary Stop the machine safely and turn the engine
pressure steering system. OFF immediately. Contact an authorized CASE
CONSTRUCTION dealer.
Coolant Level Low engine coolant level. Stop the machine safely and turn the engine OFF
immediately. Check the coolant level after letting
the engine cool. Contact an authorized CASE
CONSTRUCTION dealer.
Coolant temperature High engine coolant Stop the machine safely and turn the engine OFF
temperature. immediately. Check the coolant level after letting
the engine cool. Contact an authorized CASE
CONSTRUCTION dealer.
Hydraulic fluid temperature High temperature high in Stop the machine safely and turn the engine
high the hydraulic fluid. OFF immediately. Contact an authorized CASE
CONSTRUCTION dealer.
Transmission fluid High transmission fluid Stop the machine safely and turn the engine
temperature temperature. OFF immediately. Contact an authorized CASE
CONSTRUCTION dealer.
3-37
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3 - CONTROLS AND INSTRUMENTS
LCD Display – (Menu screens)
Viewing the screens
“Info 1”.
“Info 1” is the first information screen reached via the down
arrow from the main screen.
It displays engine RPM, speed of the machine, fuel level,
and alternator voltage level.
ALLX16LCD0001AA 1
“Info 2”.
“Info 2” is the second information screen reached via the
down arrow from the main screen.
The “Info 2” screen displays the coolant temperature, the
turbocharger air temperature, and the engine oil tempera-
ture in “Fahrenheit” or “Celsius”. “Info 2” also displays the
oil pressure in PSI.
ALLX16LCD0002AA 2
“Info 3”.
“Info 3” is the third information screen reached via the
down arrow from the main screen.
The “Info 3” screen displays the transmission fluid tem-
perature, the hydraulic fluid temperature, the temperature
of the oil in the sump, and the temperature of the coolant
in the radiator, in “Fahrenheit” or “Celsius”.
ALLX16LCD0003AA 3
3-47
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3 - CONTROLS AND INSTRUMENTS
“Display”
On the “Service” screen, use the Up arrow or the Down
arrow keys to navigate to the “Display” menu.
Press the “Enter” key. The highlighted section flashes to
indicate that a new selection can be made.
Press the “Enter” key again. A sub-menu displays the
“Day display”, “Day LED”, “Night display”, and “Night
LED”options.
Use the Up arrow or the Down arrow keys to navigate to
the desired selection. Use the “Enter” key to confirm the
selection.
The display menu can be used to change the background
and brightness of the screen.
The screen display can be changed to suit working con-
ditions.
When the headlights are turned on, the screen changes
to night lighting.
“Clock”
On the “Service” screen, use the Up arrow or the Down
arrow keys to navigate to the “Display” menu.
Press the “Enter” key. The highlighted section flashes to
indicate that a new selection can be made.
Press the “Enter” key again. A sub-menu displays the
“Hour”, “Minute”, “Day”, “Month”, and “Year” options.
Use the Up arrow or the Down arrow keys to navigate to
the desired selection. Use the “Enter” key to confirm the
selection.
“Cluster hardware”
On the “Service” screen, use the Up arrow or the Down
arrow keys to navigate to the “Display” menu.
Press the “Enter” key. The highlighted section flashes to
indicate that a new selection can be made.
Press the “Enter” key again. A sub-menu displays the
“Hardware part number”, “Hardware serial number”,
“Hardware ID”, and “Hardware version” options.
Use the Up arrow or the Down arrow keys to navigate to
the desired selection. Use the “Enter” key to confirm the
selection.
The “Hardware” screen cannot be changed by the opera-
tor.
Press “Esc” to exit this field and return to the selection
menu. Alternatively, use the Up arrow key to scroll back
to the other sub-menu selections.
3-57
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3 - CONTROLS AND INSTRUMENTS
Emergency exit
The right-hand window of the cab can be used as an emer-
gency exit.
Be proactive and open and close the emergency window
exit as a safety measure to become familiar with its oper-
ation.
COIL17WEL0461AB 4
3-67
--- Page 18 ---
4 - OPERATING INSTRUCTIONS
MOVING THE UNIT
Before operating the transmission
Transmission enable switch
The transmission enable switch can be enabled only
after the following conditions have been completed:
1. The transmission control lever must be in neutral (left-
hand side).
2. The F-N-R switch must be in neutral (right-hand side).
3. The engine must be running.
4. The machine must be stopped.
5. The parking brake must be released.
6. Press the transmission enable switch to allow the
transmission to be controlled by the auxiliary F-N-R
switch. 84413127_B2 1
7. The indicator light at the bottom of the enable switch
will illuminate when activated.
NOTE: Within 8 seconds from depressing the trans-
mission enable switch the following actions must take
place or the F-N-R enable switch must be reactivated.
NOTE: If the transmission control lever installed on
the steering column is moved from neutral, the en-
gine is stopped, or the parking brake is applied, the
auxiliary F-N-R mode is deactivated. The transmis-
sion control returns back to the standard transmission
control lever configuration.
8. The parking brake must be released.
9. Shift to F or R from neutral on the F-N-R switch.
10. The service brake must be stepped on.
4-9
--- Page 19 ---
4 - OPERATING INSTRUCTIONS
Return-to-travel function
The return-to-travel function is used to automatically stop
the movement of the loader bucket at the selected carry
height. To enable the return-to-dig function, press the top
of the return to travel/float switch.
RCPH10WHL110BAL 6
1. Tilt detent
2. Floatation
To engage, move the control lever into the FLOAT and
TILT detents. The control levers will automatically return
to the “HOLD” position when the loader reaches the re-
turn-to-travel position.
RCPH10WHL119BAL 7
1. Float and tilt detent
4-19
--- Page 20 ---
5 - TRANSPORT OPERATIONS
SHIPPING TRANSPORT
Machine transport
WARNING
Crushing hazard!
Engage the safety lock link before service or transport.
Failure to comply could result in death or serious injury.
W1154A
WARNING
Driving hazard!
Know all rules, regulations, laws, and required safety equipment for transporting or operating this ma-
chine on a road or highway. See your dealer to obtain a rotating beacon, backup alarm, Slow Moving
Vehicle (SMV) emblem, and other safety equipment.
Failure to comply could result in death or serious injury.
W0154A
WARNING
Transport hazard!
The machine can slip or fall from a ramp or trailer. Make sure the ramp and trailer are not slippery.
Remove all oil, grease, ice, etc. Move the machine on or off the trailer with machine centered on the
trailer or ramp.
Failure to comply could result in death or serious injury.
W0152A
WARNING
Transport hazard!
Always use the primary steering when loading or unloading the machine for transport. Do not use
joystick steering when loading or unloading the machine from a truck or trailer.
Failure to comply could result in death or serious injury.
W0448A
NOTICE: Make sure that the trailer is suitable for the machine. The trailer and machine must be equipped with the
correct safety equipment for transport. Clean the trailer before loading or unloading the machine. Make sure you know
the regulations, laws and governmental codes related to road transport before transporting the machine. Make sure
that the trailer and the machine are equipped with the correct safety equipment. Use care when loading a machine.
5-5
--- Page 22 ---
6 - WORKING OPERATIONS
Operations to scrape surfaces
When you perform operations to scrape hard surfaces,
the bucket should be level in relation to the surface.
Operate the machine at a low speed.
Before starting the operation, inspect the work area for
objects that could hit the bucket and clearly identify them.
When you approach the identified objects, go around the
identified objects with the machine at low speed.
The bucket edges or teeth can hit protruding parts of
frozen surfaces or objects buried in the ground during
scraping operations.
ATTENTION: The result of the operator failing to take BRIL12WL0033A0A 3
these precautions could be injury or damage to the ma-
chine.
Material transport operations
When you perform material transport operations, the
bucket must tilted back. The bottom of the bucket must
not be more than 305 – 457 mm (12.0 – 18.0 in) above
the surface.
ATTENTION: When you operate the machine, keep the
loader bucket as low as possible. This low position gives
better balance and permits you to see more clearly. If the
bucket is full and you move the machine over ground that
is rough or surfaces that can cause the machine to slide,
always operate at low speed.
BRIL12WL0034A0A 4
Operations on sloped surfaces
Do not let the machine move down a sloped surface with
the transmission in neutral.
Do not use the declutch switch when you operate on
sloped surfaces.
Be extra careful and pay extra attention when you operate
on sloped surfaces.
Make sure that the low speed travel is selected.
Always travel in the same direction as the slope to prevent
the machine from turning over
On extremely steep surfaces, use the transmission kick
down mode.
NOTICE: This procedure helps with braking and prevents
brake overheating and premature disk wear.
6-3
--- Page 23 ---
7 - MAINTENANCE
Security lock, transport and service
WARNING
Improper operation or service of this machine can result in an accident.
Read and understand the SAFETY INFORMATION chapter before you perform any maintenance, ser-
vice, or repairs. Read and understand the specific service procedures for the components you plan
to work with before you start servicing the machine.
Failure to comply could result in death or serious injury.
W0138B
NOTICE: When latched, this device prevents the machine from articulating.
Security lock, transport and service
Before you start any maintenance, inspection, lubrication,
or transport of the machine, proceed as follows:
1. Keep all unauthorized personnel clear of the area.
2. Park the machine on a flat, level, firm surface, away
from any obstacles.
3. Support the implements on the ground.
4. Place the ignition key in the "OFF" position to shut
down the engine.
5. Set the park brake.
PL1418WEL0001AA 1
6. Position the locking bar in the locked position (mainte-
nance) (1).
7. Perform the maintenance procedures, inspection, or
lubrication.
8. After you complete the service, deactivate the safety
knuckle. Lock the knuckle in the normal operating po-
sition (2) on the rear chassis.
RCPH10WHL063BAL 2
RCPH10WHL062BAL 3
7-7
--- Page 24 ---
7 - MAINTENANCE
Engine coolant system
WARNING
Improper operation or service of this machine can result in an accident.
Read and understand the SAFETY INFORMATION chapter before you perform any maintenance, ser-
vice, or repairs. Read and understand the specific service procedures for the components you plan
to work with before you start servicing the machine.
Failure to comply could result in death or serious injury.
W0138B
Specifications
For information about engine cooling system specifications and capacities, see page 8-1.
For information about engine coolant level check, see page 7-48.
For information about cleaning the system and changing the coolant in the engine cooling system, see 7-115 page.
Radiator
• The cooling system operates under high pressure.
• Remove the radiator cap slowly and only when the engine is cold. Otherwise, this could result in serious injury.
• The radiator is intended to cool the water under all conditions of operation.
• It is important that all of the internal and outer water passages are always unobstructed.
• The radiator cap should be replaced if it does not maintain the correct pressure.
Coolant