PDF Operation and Maintenance Manual Daewoo Doosan Solar 290LC-V Excavator - 674 KB
Maintain the power and reliability of your Daewoo Doosan Solar 290LC-V excavator with this complete operation and maintenance manual.
This document provides operators and technicians with critical information on daily checks, fluid specifications, and periodic service tasks.
Following the manufacturer's recommended procedures is the best way to prevent unexpected downtime and costly repairs.
This manual is a vital resource for anyone responsible for this excavator's care.
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Solar 290LC-V
Operation and Maintenance Manual
2022-7144E
Serial Number 0001 and Up
April 1998
Daewoo reserves the right to improve our products in a continuing process to provide the best possible
product to the market place. These improvements can be implemented at any time with no obligation to
change materials on previously sold products. It is recommended that consumers periodically contact their
distributors for recent documentation on purchased equipment.
This documentation may include attachments and optional equipment that is not available in your
machine’s package. Please call your distributor for additional items that you may require.
Illustrations used throughout this manual are used only as a representation of the actual piece of
equipment, and may vary from the actual item.
2022-7144E Operation and Maintenance Manual
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6. WARNING FOR BATTERIES MAINTENANCE (2190 - 2533).
WARNING!
• Battery fumes can explode. Keep sparks and flames away from batteries.
• Always avoid storing metals like tools or inflammable materials around or on the
batteries. Explosion or fire can be caused by short circuiting batteries.
• Sulfuric acid in battery is poisonous. It is strong enough to burn skin, eat holes in
clothing, and cause blindness if splashed in eyes.
• If you spill acid on yourself:
1. Flush your skin with water.
2. Apply baking soda or lime to help neutralize the acid.
3. Flush your eyes with water for 10-15 minutes.
Get medical attention immediately.
7. WARNING FOR HIGH TEMPERATURE HYDRAULIC OIL (2190 - 3318)
.
WARNING!
To prevent hot oil from spurting out:
• Turn engine off.
• After oil to cooled.
• Push button on the breather to relieve pressure before removing cover.
2022-7144E Operation and Maintenance Manual Safety 1-7
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BOOST STARTING OR CHARGING ENGINE
BATTERIES
Turn off all electrical equipment before
connecting leads to the battery. This includes
electrical switches on the battery charger or
boost starting equipment.
When boost-starting from another machine or
vehicle do not allow the two machines to touch.
Wear safety glasses or goggles while required
parallel battery connections – positive to
positive and negative to negative – are made.
HAOA310L
24 volt battery units consisting of two series- Figure 11
connected twelve volt batteries have a cable
connecting one positive terminal on one of the
12 volt batteries to a negative terminal on the other battery. Booster or charger cable connections must be
made between the non-series-connected positive terminals and between the negative terminal of the
booster battery and the metal frame of the machine being boosted or charged. Refer to the procedure and
illustration in “Starting Engine Using a Booster Battery” on page 3-8 of this manual.
Connect positive cable first when installing cables and disconnect the negative cable first when removing
them. The final cable connection, at the metal frame of the machine being charged or boost-started, should
be as far away from the batteries as possible.
TRAVEL CONTROLS MAY PRODUCE REVERSED OPERATIONS
Before starting the machine you should always check to see which end of the track frame is under the
operator’s cab. In the normal travel configuration, track frame travel motors are at the rear of the machine,
under the engine and counterweight. If the operator swings the cab 180°, travel motors will be underneath
the operator’s cab, toward the front of the track frame and operating travel will be reversed.
When traveling the excavator always keep lights on; make sure that you are in compliance with all state
and local regulations concerning warning flags and signs and keep the operator’s cab positioned over the
idler end of the track frame. That will keep travel controls in their intended configuration and at the same
time, maintain the proper orientation of lights on the machine and posted flags and signs.
KEEP "PINCH POINT" AREAS CLEAR - USE
CAUTION IN REVERSE & SWING
Use a signal person in high traffic areas and
whenever the operator’s view is not clear, such
as when traveling in reverse. Make sure that no
one comes inside the swing radius of the
machine.
Anyone standing near the track frames, or
working assemblies of the attachment, is at risk
of being caught between moving parts of the
machine.
HAOA190L
Never allow anyone to ride on any part of the Figure 12
machine or attachment, including any part of the
turntable or operator’s cab.
2022-7144E Operation and Maintenance Manual Safety 1-17
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Centerline
Lifting Radius
of Rotation
Lifting
Point
Lifting
Point
Height
Ground Line (Machine Supporting Surface)
0076A
Figure 23
The weight of slings and any auxiliary lifting device (and/or the weight difference of any attachment heavier
than standard configuration) must be deducted from the rated lift capacity to determine allowable net lifting
load. The lift point should be located on the back of the bucket, as shown in Figure 23.
IMPORTANT!
Select the Digging Mode switch on the Instrument Panel before using the excavator for lifting
work. Engine and hydraulic oil should both be fully warmed up to operating temperature before
starting a lift.
2022-7144E Operation and Maintenance Manual Safety 1-27
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1. START SWITCH
To start or stop the engine for equipment
D B A
operation.
A. "I" Position (On) - Turning the switch
to this position turns the engine C
electrical system on. The charge
indicator light and the oil pressure
indicator light should be "ON" at this
time.
B. "O" Position (Off) - Turning the switch
to this position turns the engine HAOC341L
"OFF" along with its electrical Figure 4
system. In this position the engine is
"OFF" but the interior cab light and
fuel tank transfer pump (if equipped)
are functional.
" "
C. Position (Start) - If you turn the starter switch to this position, the engine will start. When
released, the key will return to the "ON" position automatically. Do not operate the starter switch
over 15 seconds at a time, this will help prevent damage to starter.
WARNING!
DO NOT USE STARTING FLUIDS WHEN USING THE PREHEAT SYSTEM. The preheat
system could cause the starting fluid to explode.
" "
D. Position (Preheating) - Use this position to start in cold weather. When preheating is
completed, the preheating completion light, located on the instrument panel will light up. Start
the engine immediately after the light comes "ON."
2. ENGINE SPEED CONTROL DIAL
The engine speed is controlled by the dial.
Rotating it clockwise increases engine
speed (RPM) and counterclockwise
decreases engine speed.
A Low idle (Lowest engine speed)
B High idle (Highest engine speed)
HAOA690L
Figure 5
2-6 Operating Controls 2022-7144E Operation and Maintenance Manual
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MODE SELECTION SWITCHES
HAOA670L
Figure 34
POWER MODE WORK MODE
SWITCH 1. POWER MODE 3. WORK MODE 5. AUTO IDLE SWITCH
SELECTION SWITCH (1, SELECTION SWITCH (1,
Figure 44 on page 3-21) Figure 45 on page 3-22)
2. POWER MODE 4. WORK MODE 6. MULTI-FUNCTION
SELECTION SWITCH (2, SELECTION SWITCH (2, GAUGE DISPLAY
Figure 44 on page 3-21) Figure 45 on page 3-22) SELECTION SWITCH
INDICATOR 7. POWER MODE - I 10. LEVELING MODE 13. AUTO IDLE
INDICATOR INDICATOR INDICATOR
8. POWER MODE - II 11. DIGGING WORK MODE
INDICATOR INDICATOR
9. POWER MODE - III 12. TRENCHING WORK
INICATOR MODE INDICATOR
• Regarding the usage of power mode and work mode selection switch, refer to "Mode Selection"
(See page 3-21).
• Regarding the usage of multi-function gauge display switch (See page 2-12).
• Regarding the usage of auto idle switch refer to "Mode Selection" (See page 3-21).
2-16 Operating Controls 2022-7144E Operation and Maintenance Manual
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4. FUSIBLE LINK
A fusible link is located in the battery box.
If the engine does not crank, first check
that the starter switch is turned "ON" and A
that no power is available (No indicator
lights will light.). Check that the "A" portion
(Figure 55) of the fusible link is not broken
or burned through. Replace the fusible link
if damage and investigate cause.
HAOB100L
Figure 55
SEAT ADJUSTMENT
WARNING!
Whenever the operator or operating
condition has changed, check to see that
the seating position is suitable for the
condition at hand. Always fasten your seat
belt while operating vehicle. Adjust the
backrest so that the operator can fully
reach and operate the pedals. When
setting the safety lever to the "LOCK"
HAOB110L
position, first make sure the left arm rest
Figure 56
is completely raised to the upright
position.
1. ADJUSTING THE SEAT FORWARD/
BACKWARD LEVER (FIGURE 57)
Holding lever and raise it up, while pushing
or pulling the seat to desired position.
Release lever once desired position is
reached. Adjustment range is 160 mm (6.3
in.)
2. ADJUSTING THE SEAT'S ANGLE AND
HEIGHT LEVER (FIGURE 57)
Pulling left lever up allows rear part of seat HAOB120L
to be moved up or down. Pushing it down Figure 57
allows front part of seat to be moved up or
down. Adjust the seat according to
operator’s size and work conditions.
Adjustment range is 60 mm (2.36 in.) for
both front and rear.
2-26 Operating Controls 2022-7144E Operation and Maintenance Manual
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STARTING AND STOPPING THE ENGINE
INSPECTION BEFORE STARTING ENGINE
WARNING!
If a flammable materials such as leaves, paper, etc. are allow to accumulate on high temperature
components, such as the engine muffler and turbo, a fire may occur. Fuel, lubricant and
hydraulic oil leaks, may cause a fire. If there is anything wrong, perform the appropriate
corrective action.
Before starting engine, inspect the following items;
1. Electric system - Check for damaged electric cables, and loose or missing connectors.
2. Fuel system - Drain water and sediment from fuel tank.
3. Hydraulic system - Check for hydraulic oil leaks, damaged tubing and hoses, and interference points
of components.
4. Lubrication - Perform all daily and periodic maintenance services. Perform services according to
reading shown on hourmeter.
5. Safety - Perform a machine walk-around. Make sure that no one is under the machine or performing
any maintenance on it, before starting engine.
6. After starting machine - Check that all operational controls and components, are in proper operating
condition, and are functioning correctly. Stop operation and correct any malfunction before continuing
work.
OPERATIONAL CHECKS BEFORE
STARTING ENGINE
WARNING!
When leaving operator's seat, set the
safety lever to "LOCK" position, if not a
serious accident could occur by
accidentally moving the joysticks.
1. Set safety lever on "LOCK" (Figure 1). HAOA390L
Figure 1
2. Fasten seat belt. Check for proper
operation and condition
3. Set all operation levers in "NEUTRAL."
NOTE: Be careful not to touch any
switches when starting engine.
3-2 Operation 2022-7144E Operation and Maintenance Manual
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3. Set engine speed control dial to “LOW
IDLE” (Figure 24). Allow engine to idle for
3 - 5 minutes.
HAOB290L
Figure 24
4. Stop engine turning by turning key to "O" -
"OFF" position (Figure 25).
5. Pull key out of starter switch.
HAOC340L
Figure 25
6. Set safety lever on "LOCK" position by
pulling it up (Figure 26).
CHECK AND CONFIRMATION AFTER
STOPPING ENGINE
1. Repair excavator, if there is any coolant or
oil leaks.
2. Inspect front attachment and under
carriage for abnormal appearances.
Correct any problems.
HAOA390L
3. Fill fuel tank.
Figure 26
4. Get rid of any accumulated ignitable
material such as leaves and paper etc. in
engine compartment.
5. Clean all mud, etc. from undercarriage and
tracks. Make sure that all steps and hand
holds are clean, and that the operator’s
compartment is clean.
3-12 Operation 2022-7144E Operation and Maintenance Manual
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Work Mode
1. When the starter switch is turned "ON" the
work mode is automatically defaulted to
"Digging Mode."
2. Select proper power mode using switches
(1 and 2, Figure 44) before starting work.
When a switch is pressed, a signal sounds
indicating that the mode has changed. The
LED below the selected work mode will
light.
NOTE: The control valve is set to HAOB710L
optimum condition for each
Figure 45
work mode.
MODE SELECTION POINT FEATURE OF CONTROL
Leveling mode Level and drag work The boom is faster than arm
Fine leveling work
HAOB720L Ground leveling
Slope leveling
Digging Mode General excavation General standard.
Loading dump trucks.
HAOB730L Lifting and transport of heavy
objects
Use of hydraulic breaker.
Trenching Mode Trenching The swing is faster and stronger
than boom or arm.
Excavating of side wall
HAOB740L When work is being done that
requires constant swinging.
3-22 Operation 2022-7144E Operation and Maintenance Manual
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HYDRAULIC BREAKER
IMPORTANT
If a hydraulic breaker and piping is installed without DAEWOO's authorization, it may create a
serious malfunction which will not be covered under the excavator warranty.
SELECTION OF HYDRAULIC BREAKER.
If a hydraulic breaker is installed, consider equipment's stability and suitability for such modification. Also
consider hydraulic oil pressure and quantity. When selecting a hydraulic breaker consult with a DAEWOO
distributor or sales agency.
HYDRAULIC HOSES AND TUBING FOR BREAKER.
1. When installing hydraulic breaker, assemble according to drawings provided with kit.
2. If breaker is taken off excavator, be sure to plug and cap all hoses and tubing to prevent
contamination from entering hydraulic system.
3. Plug and cap all connectors and fittings on breaker to prevent contamination.
4. Check all hydraulic connections for signs of leaks or loose components before starting operation.
HYDRAULIC BREAKER OPERATION
NOTE: Hydraulic pressure and flow settings may need to be changed. Refer to the Maintenance
Section of this manual for further information.
1. Make sure to read and understand the breaker users manual.
2. Inspect all mechanical and hydraulic connections.
3. DO NOT use the breaker as a hammer.
See Figure 72.
Do not drop breaker from extreme heights.
The breaker is relatively heavy and drops
fast. Do not drop breaker from extreme
heights or damage to upper structure may
result
HAOB930L
Figure 72
3-32 Operation 2022-7144E Operation and Maintenance Manual
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MAINTENANCE INTERVALS
10 HOUR / DAILY SERVICE
• Grease Boom, Arm and Front Attachment • Inspect the Bucket Teeth and Side Cutters
Pins (See page 4-8) for Signs of Wear (See page 4-12)
• Check Engine Oil Level (See page 4-8) • Inspect Seat Belt for Proper Operation (See
• Check Level of Hydraulic Oil Tank (See page 4-12)
page 4-8) • Inspect the Structure for Cracks and Faulty
• Check For Leaks in The Hydraulic System Welds (See page 4-12)
(See page 4-9) • Check the Operation of All Switches (See
• Check Fuel Level (See page 4-9) page 4-13)
• Check for Leaks in the Fuel System (See • Check the Operation of All Exterior Lights,
page 4-10) Horn and Control Console Indicator and
• Check Oil Level of Swing Reduction Device Monitor Lights (See page 4-13)
(See page 4-10) • Start Engine, Check Starting Ability, and
• Clean Dust Net in Front of Oil Cooler (See Observe Exhaust Color at Start-up and at
page 4-11) Normal Operating Temperature. Listen for
• Check Cooling System and Refill As Any Abnormal Sounds (See page 4-13)
Required (See page 4-11) • Check Operation of All Controls (See page
• Check Level of Window Washer Liquid (See 4-13)
page 4-12)
50 HOUR / WEEKLY SERVICE
• Perform All 10 Hour / Daily Service Checks • Check Engine Fan Belt for Cracks, Wear
(See page 4-14) and Correct Tension (After First 50 Hours)
• Grease Boom, Arm and Front Attachment (See page 4-17)
Pins (See page 4-14) • Change Engine Oil and Filter (After First 50
• Grease Swing Bearing (See page 4-16) Hours) (See page 4-17)
• Drain Water and Sediment from Fuel Filter • Inspect the Track Assemblies for Proper
(See page 4-17) Tension and Loose, Worn or Damaged
• Drain Water and Sediment from Fuel Tank Parts (Links, Shoes, Rollers, Idlers) (See
(See page 4-17) page 4-17)
150 HOUR SERVICE
• Perform All 10 Hour / Daily and 50 Hour • Check Engine Fan Belt For Cracks, Wear
Service Checks (See page 4-18) And Correct Tension (See page 4-19)
• Clean Outer Element of Two Stage Air
Cleaner (See page 4-18)
250 HOUR / MONTHLY SERVICE
• Perform All Daily, 50 and 150 Operating • Change Pilot Filter (See page 4-22)
Hour Service Checks (See page 4-20) • Inspect Pins and Bushings of the Front End
• Change Engine Oil And Filter (See page Attachments for Signs of Wear (See page
4-20) 4-23)
• Change Swing Reduction Device Oil (Drain • Check the Fluid Levels in the Batteries and
and Refill After First 250 Hours) (See page the Battery Charge Levels (See page 4-23)
4-20) • Inspect for Any Loose or Missing Nuts and
• Check Oil Level of Travel Reducer On Both Bolts (See page 4-23)
Side Of Unit (See page 4-21) • Inspect Fuel System Hose Clamps (See
• Replace Full Flow Hydraulic Oil Filter (See page 4-23)
page 4-21)
4-6 Inspection, Maintenance and Adjustment 2022-7144E Operation and Maintenance Manual
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G. Bucket cylinder bottom pin (1 point)
Figure 25
H. Arm link joint pin (2 points)
I. Link joint pin (2 points)
J. Arm bucket joint pin (2 points)
K. Bucket link joint pin (1 point)
Figure 26
L. Bucket cylinder rod (1 point)
Figure 27
GREASE SWING BEARING
1. There are three grease fittings for the
swing bearing. Do not over lubricate.
Purge old grease with new. Remove all
purged grease.
Figure 28
4-16 Inspection, Maintenance and Adjustment 2022-7144E Operation and Maintenance Manual
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750 HOUR SERVICE
PERFORM ALL DAILY (10 HOUR), 50, 150, 250 AND 500 OPERATING HOUR SERVICE CHECKS
CHANGE FUEL FILTER
WARNING!
Exchange filter after waiting for engine to cool. Be careful of fire hazards. Do not smoke.
1. Locate fuel filter inside engine
compartment.
2. Position a small container under fuel filter.
Drain fuel by opening drain valve located
on bottom of filter.
3. Unscrew fuel filter from head assembly.
Discard fuel filter.
4. After cleaning filter head, install new fuel
filter. Screw filter on head until gasket
contacts head, turn filter 1/3 - 1/2 turn
more.
Figure 45
NOTE: Coat fuel filter gasket with fuel.
NOTE: Fill fuel filter with clean fuel.
This will help reduce fuel
system priming.
5. Start engine. After engine has run for a couple of minutes, shutdown engine and look for leaks.
If engine does not start, the fuel system may need priming. Prime fuel system using the following
procedure;
1. Loosen plug on top of fuel filter head.
2. Unscrew and pump the hand operated primer pump located by the fuel injection pump. Pump primer
until fuel is present at plug hole in fuel filter head.
3. Tighten plug in fuel filter head.
4. Continue to pump primer pump until a strong resistance is felt. Screw the primer pump knob back into
housing.
5. Start engine and look for signs of leaks.
6. Repeat procedure if necessary.
4-26 Inspection, Maintenance and Adjustment 2022-7144E Operation and Maintenance Manual
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HANDLING OF ACCUMULATOR
WARNING!
Even though the engine is stopped, the hydraulic accumulators for the pilot system are still
charged. Do not disconnect any pilot system hoses until accumulator pressure has been
released from the circuit. To release pressure turn the start switch to “I” (ON) and operate all
hydraulic control levers and forward/reverse travel levers. Even though the engine is shutdown
hydraulic actuated components may move while releasing pilot pressure. Keep all personnel
away from excavator while performing this operation.
• Set safety lever on "LOCK" position after stopping engine.
• DO NOT mishandle accumulator(s). They are very dangerous because they contain
high pressure nitrogen gas.
• DO NOT punch a hole or apply heat or fire to an accumulator.
• DO NOT weld on accumulator.
• When replacing an accumulator, contact a DAEWOO's distributor or sales agency so
the gas can be properly released.
• Wear safety goggles and protective gloves when working on an accumulator.
Hydraulic oil under pressure can penetrate the skin and cause serious injuries.
Release pilot accumulator pressure using the
following procedure;
1. Lower front attachment (bucket) on the
ground.
2. Stop the engine.
3. Set safety lever on "RELEASED" position.
4. Turn starter switch "ON."
5. Fully stroke control levers in all directions.
6. Set safety lever on "LOCK" position.
7. Remove accumulator by unscrewing it Figure 61
slowly.
4-36 Inspection, Maintenance and Adjustment 2022-7144E Operation and Maintenance Manual
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BOLT AND NUT INSPECTION
Inspect ALL fasteners after the first 50 hours of operation and every 250 hours thereafter. If any are loose
or are missing tighten them or install new hardware. Always use a calibrated torque wrench.
IMPORTANT
Always clean fasteners before tightening.
If counterweight is loose, contact a DAEWOO distributor or sales agent.
.
NO. POINT TO BE INSPECTED BOLT QTY. BOLT TORQUE
DIA. HEAD
MM SIZE KGF/M Nm lbf/ft
1 Joint bolt with engine pump side 12 8 19 9 88 65
mounting bracket and
engine fan side ----- ----- ----- ----- ----- -----
2 Joint bolt with engine pump side 10 8 17 5 49 36
mounting rubber and
frame fan side 10 8 17 5 49 36
3 Joint bolt & nut between pump side 16 2 24 13.5 132 98
engine mounting
bracket and rubber fan side 16 2 24 13.5 132 98
4 Radiator mounting bolt 16 4 24 21 205 152
5 Tightening bolt for hydraulic oil tank 16 4 24 21 205 152
6 Tightening bolt for fuel tank 16 4 24 21 205 152
7 Tightening bolt for pump 20 4 S 49 440 325
8 Tightening bolt for control valve 12 4 19 9 88 65
9 Tightening bolt for swing reducer 20 14 30 55 539 398
10 Tightening bolt for swing motor 18 12 S 34 33 246
11 Tightening bolt for battery 10 2 17 5 49 36
12 Joint bolt with cab mounting rubber and 10 16 17 6.7 66 48
frame
Joint bolt with cab mounting rubber and 16 4 24 21 206 152
cab
13 Joint bolt with swing bearing and upper 24 35 36 75 735 542
frame
Joint bolt with swing bearing and bottom 24 36 36 95 931 687
frame
14 Tightening bolt for travel device 20 40 30 49 480 354
Tightening bolt for sprocket 20 48 30 49 480 354
4-46 Inspection, Maintenance and Adjustment 2022-7144E Operation and Maintenance Manual