PDF Operator Manual Grove RT765E-2 Crane - 2 MB
This operator manual is a crucial guide for the safe and efficient use of the Grove RT765E-2 rough terrain crane.
It comprehensively covers all operational procedures, detailed load charts, critical safety warnings, and all required routine maintenance checks.
Every operator, regardless of experience level, should be thoroughly familiar with the contents of this manual before operating the crane to ensure the safety of the entire job site and the longevity of the machine.
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Grove RT765E-2
Operator Manual
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RT765E-2 OPERATOR MANUAL INTRODUCTION
SECTION 1
INTRODUCTION
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Torque Converter. . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Customer Support. . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Noise/vibration test results . . . . . . . . . . . . . . . . . . 1-1 Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Noise Level Test Results . . . . . . . . . . . . . . . . . . . 1-1 Axles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Vibration Level Test Results . . . . . . . . . . . . . . . . . 1-2 Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Serial Number Location . . . . . . . . . . . . . . . . . . . . . 1-2 Wheels and Tires. . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Swing Gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Crane Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Boom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
List Of Specifications . . . . . . . . . . . . . . . . . . . . . . . 1-6
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Swivel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Hydraulic Pumps . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
1
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6 Hoists. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
GENERAL issues. They have the facilities, parts, factory trained
personnel, and the information to assist you in a timely
NOTE: Throughout this manual, reference is made to left, manner. We request that you first contact them for
right, front, and rear when describing locations. assistance. If you feel you need factory assistance, please
These reference locations are to be considered as ask the distributor’s service management to coordinate the
those viewed from the operator’s seat with the contact on your behalf.
superstructure facing forward over the front of the
carrier frame. A compact disc or USB flash drive, which includes sections
on Operation, Safety and Maintenance for crane operators
This Operator Manual provides important information for the and owners, is supplied when the crane is purchased new.
operator of the Model RT765E-2 Grove Crane. Additional copies are available from your Grove distributor.
The rough terrain crane incorporates an all welded steel
frame, using planetary drive axles to provide four-wheel New Owners
drive. Axle steering is accomplished utilizing hydraulic steer If you are the new owner of a Grove crane, please register it
cylinders. The engine is mounted at the rear of the crane and with Manitowoc Crane Care so we have the ability to contact
provides motive power through a six speed forward and you if the need arises.
reverse transmission. Hydraulic, double box, sliding beam
outriggers are integral with the frame. G o t o : h t t p s : / / w w w. m a n i t o w o c c r a n e s . c o m / e n /
Parts_Services/ServiceAndSupport/
The carrier frame incorporates an integral fifth wheel, to ChangeOfOwnershipForm and complete the form.
which the rear axle is mounted, to provide axle oscillation.
Axle oscillation lockout is automatic when the superstructure
rotates from the travel position.
NOISE/VIBRATION TEST RESULTS
The superstructure is capable of 360° rotation in either Noise Level Test Results
direction. All crane functions are controlled from the fully-
enclosed cab mounted on the superstructure. The crane is When equipped with the CE certification package, the
equipped with a four-section, full power, sequenced and guaranteed sound power level at the operator’s station with
synchronized boom. Additional reach is obtained by utilizing closed cab operation is L wa 105 dB(A) as measured by
an optional swingaway boom extension. Lifting is provided Directive 2000/14/EC and 80 dB(A) at the crane operator’s
by a main hoist and an optional auxiliary hoist. position as measured by Annex G.1 of EN 13000:2010.
Customer Support Vibration Level Test Results
Grove and our Distributor Network want to ensure your At the operator’s station with closed cab operation, vibration
satisfaction with our products and customer support. Your levels are less than 0.5 m/s/s for Whole Body Vibration
local distributor is the best equipped and most exposure and are less than 2.5 m/s/s for Hand Arm Vibration
knowledgeable to assist you for parts, service and warranty exposure when measured according to 89/392/EEC
GROVE Published 4-23-2021, Control # 513-03 1-1
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RT765E-2 OPERATOR MANUAL SAFETY INFORMATION
SECTION 2
SAFETY INFORMATION
SECTION CONTENTS
Safety Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Environmental Protection. . . . . . . . . . . . . . . . . . . 2-28
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
Safety Alert Symbol . . . . . . . . . . . . . . . . . . . . . . . 2-2 Service and Repairs . . . . . . . . . . . . . . . . . . . . . . 2-28
Signal Words . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Safety Decals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Tires. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29
Hoist Rope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30 2
Accidents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Synthetic Hoist Rope . . . . . . . . . . . . . . . . . . . . . . 2-30
Operator Information . . . . . . . . . . . . . . . . . . . . . . . 2-3 Wire Rope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
Sheaves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32
Operator Qualifications . . . . . . . . . . . . . . . . . . . . . 2-3
Batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-32
Operational Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 Super Capacitor (If Equipped) . . . . . . . . . . . . . . . 2-32
Rated Capacity Limiter (RCL) Systems . . . . . . . . 2-4
General Maintenance . . . . . . . . . . . . . . . . . . . . . 2-33
Anti-Two-Blocking Device . . . . . . . . . . . . . . . . . . . 2-5
Transporting the Crane. . . . . . . . . . . . . . . . . . . . . 2-33
Working Area Limiter (If Equipped). . . . . . . . . . . . 2-5
Crane Stability/Structural Strength. . . . . . . . . . . . 2-6 Travel Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
Load Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 Work Practices. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35
Work Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 Personal Considerations . . . . . . . . . . . . . . . . . . . 2-35
Wind Forces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7 Crane Access . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35
Wind Speeds . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8 Job Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35
Lifting Operations . . . . . . . . . . . . . . . . . . . . . . . . 2-20 Working . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36
Multiple Crane Lifts . . . . . . . . . . . . . . . . . . . . . . . 2-21 Lifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-36
Lifting Multiple Loads . . . . . . . . . . . . . . . . . . . . . 2-21 Hand Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37
Tilt-Up Panel Lifting . . . . . . . . . . . . . . . . . . . . . . 2-21 Boom Extension . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39
Counterweight. . . . . . . . . . . . . . . . . . . . . . . . . . . 2-22 Parking and Securing . . . . . . . . . . . . . . . . . . . . . . 2-39
Outrigger Lift Off . . . . . . . . . . . . . . . . . . . . . . . . . 2-22
Shut-Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39
Pile Driving and Extracting . . . . . . . . . . . . . . . . . 2-22
Cold Weather Operation . . . . . . . . . . . . . . . . . . . . 2-39
Crane Equipment . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Crane Inspection. . . . . . . . . . . . . . . . . . . . . . . . . 2-23 Temperature Effects on Hook Blocks . . . . . . . . . 2-40
Electrocution Hazard . . . . . . . . . . . . . . . . . . . . . . 2-23 Temperature Effects on Hydraulic Cylinders . . . 2-41
Set-Up and Operation . . . . . . . . . . . . . . . . . . . . . 2-24 Stability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43
Electrocution Hazard Devices. . . . . . . . . . . . . . . 2-25
Access Platform Hand Rail. . . . . . . . . . . . . . . . . . 2-43
Electrical Contact . . . . . . . . . . . . . . . . . . . . . . . . 2-25
Special Operating Conditions and Equipment . . 2-26 Overload Inspection . . . . . . . . . . . . . . . . . . . . . . . 2-43
Boom Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 2-44
Grounding the Crane . . . . . . . . . . . . . . . . . . . . . 2-26
Superstructure Inspection . . . . . . . . . . . . . . . . . . 2-46
Personnel Handling . . . . . . . . . . . . . . . . . . . . . . . 2-27
Carrier Inspection . . . . . . . . . . . . . . . . . . . . . . . . 2-48
Grove Published 4-23-2021, Control # 513-03 2-1
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RT765E-2 OPERATOR MANUAL SAFETY INFORMATION
Calculation of Projected Wind Area (Ap):
8m
8m
Wind Wind
1m 3m
Ap = 8 m2 Ap = 24 m2
3m 1m
2
25 ft 25 ft
Wind
Wind
3 ft 10 ft
Ap = 75 ft2 Ap = 250 ft2
8384-1 10 ft 3 ft
FIGURE 2-2
Determining Wind Drag Coefficient (Cd)
Table 2-2 shows the typical Shapes and corresponding Wind
Drag Coefficient (Cd) values.
If the exact Wind Drag Coefficient of a shape is not known,
use the maximum value of the shape’s range ((Table 2-2)).
If the wind drag coefficient of the load cannot be estimated or
determined, it shall be assumed that (Cd) = 2.4.
Grove Published 4-23-2021, Control # 513-03 2-11
--- Page 6 ---
RT765E-2 OPERATOR MANUAL SAFETY INFORMATION
Multiple Crane Lifts 1926.753(e)(2) Components of the multiple lift rigging
assembly shall be specifically designed and assembled with
Multiple crane lifts are not recommended. a maximum capacity for total assembly and for each
Any lift that requires more than one crane must be precisely individual attachment point. This capacity, certified by the
planned and coordinated by a qualified person. If it is manufacturer or a qualified rigger, shall be based on the
necessary to perform a multi-crane lift, the operator shall be manufacturer's specifications with a 5 to 1 safety factor for all
responsible for assuring that the following minimum safety components.
precautions are taken:
• Secure the services of a qualified person to direct the 1926.753(e)(3) The total load shall not exceed:
operation. • 1926.753(e)(3)(i) The rated capacity of the hoisting
• Make sure that all signals are coordinated through the lift equipment specified in the hoisting equipment load
•
director or person in charge of the lift.
Coordinate lifting plans with the operators, designated •
charts;
1926.753(e)(3)(ii) The rigging capacity specified in the
2
person, and signal person prior to beginning the lift. rigging rating chart.
• Maintain communication between all parties throughout
1926.753(e)(4) The multiple lift rigging assembly shall be
the entire operation. If possible, provide approved radio
rigged with members:
equipment for voice communication between all parties
engaged in the lift. • 1926.753(e)(4)(i) Attached at their center of gravity and
maintained reasonably level;
• Use outriggers on cranes so equipped.
• 1926.753(e)(4)(ii) Rigged from top down; and
• Calculate the amount of weight to be lifted by each crane
and attach slings at the correct points for proper weight • 1926.753(e)(4)(iii) Rigged at least 7 feet (2.1 m) apart.
distribution.
1926.753(e)(5) The members on the multiple lift rigging
• Make sure that the load lines are directly over the attach assembly shall be set from the bottom up.
points to avoid side loading and transfer of loading from
one crane to the other.
1926.753(e)(6) Controlled load lowering shall be used
• Do not travel. Lift only from a stationary position. whenever the load is over the connectors.
Lifting Multiple Loads Tilt-Up Panel Lifting
Grove recommends lifting only one load at a time. Requirements and recommendations regarding operation
and use of Grove cranes are stated on decals and in the
Lifting two or more separately rigged loads at one time is only
Operator Manual provided with each specific model
permitted during steel erection in accordance with
machine. Using the subject crane to perform tilt-up panel
29CFR1926.753 when the following criteria are met:
lifting with two hoist lines poses new and different hazards
than does normal lifting use.
1926.753(e)(1) A multiple lift shall only be performed if the
Therefore, the following additional precautions must be
following criteria are met:
taken if it is necessary for the crane to be used to perform tilt-
• 1926.753(e)(1)(i) A multiple lift rigging assembly is used; up panel lifting using a crane equipped with two hoists:
• 1926.753(e)(1)(ii) A maximum of five members are • The crane must be set up and operated in accordance
hoisted per lift; with Grove’s instructions in the Operator Manual, Load
Capacity Chart, and decals affixed to the crane.
• 1926.753(e)(1)(iii) Only beams and similar structural
members are lifted; and • The hoist rope from the main hoist shall be reeved over
the main boom nose reeved for two parts of line.
• 1926.753(e)(1)(iv) All employees engaged in the
multiple lift have been trained in these procedures in • The hoist rope from the auxiliary hoist shall be reeved
accordance with § 1926.761(c)(1). over the auxiliary boom nose reeved for one part of line
or up to two parts of line depending on the applicable
• 1926.753(e)(1)(v) No crane is permitted to be used for a
load chart ratings.
multiple lift where such use is contrary to the
manufacturer's specifications and limitations. • The load shall be connected with the main hoist line
connected to the end closest to crane and the auxiliary
hoist line connected to the end farthest from the crane.
Grove Published 4-23-2021, Control # 513-03 2-21
--- Page 7 ---
RT765E-2 OPERATOR MANUAL SAFETY INFORMATION
ASME and similar organizations. See the Service - Broken wires; number and location.
Manual for inspection procedures.
- Reduction in diameter.
When inspecting ropes and attachments, keep all parts
- Rope stretch (elongation).
of your body and clothing away from rotating hoist drums
and all rotating sheaves. Never handle the rope with - Integrity of end attachments.
bare hands.
- Evidence of abuse or contact with another object.
Some conditions that lead to problems in wire rope
- Heat damage.
systems include:
- Corrosion.
- Sheaves that are too small, worn or corrugated
cause damage to a wire rope. NOTE: A more detailed rope inspection procedure is given
in the Service Manual.
-
-
Broken wires mean a loss in strength.
Kinks permanently damage a rope and must be
• When a rope has been removed from service 2
because it is no longer suitable for use, it must not
avoided.
be reused on another application.
- Ropes are damaged by knots. Rope with knots must
Installing a new rope
never be used.
• Keep all parts of your body and clothing away from
- Environmental factors such as corrosive conditions
rotating hoist drums and all rotating sheaves.
and heat can damage a wire rope.
• Never handle the wire rope with bare hands.
- Lack of lubrication can significantly shorten the
useful life of a wire rope. • Follow proper instructions for removing rope from a reel.
- Contact with electrical wires and resulting arcing will • Apply back tension to the storage/payoff reel of the new
damage a wire rope. rope to ensure tight, even, spooling onto the hoist drum.
• An inspection should include verification that none of the • Operate the new rope—first through several cycles at
specified removal criteria for this usage are met by light load—then through several cycles at intermediate
checking for such things as: load, to allow the rope to adjust to operating conditions.
- Surface wear; nominal and unusual.
Grove Published 4-23-2021, Control # 513-03 2-31
--- Page 8 ---
RT765E-2 OPERATOR MANUAL SAFETY INFORMATION
TEMPERATURE EFFECTS ON HYDRAULIC movement of the boom may be undetected by the operator
CYLINDERS unless a load is suspended for a long period of time. To
minimize the effects of thermal contraction or “Stick-slip” it is
Hydraulic oil expands when heated and contracts when recommended that the telescope control lever is activated
cooled. This is a natural phenomena that happens to all periodically in the extend position to mitigate the effects of
liquids. The coefficient of expansion for API Group 1 cooling oil.
hydraulic oil is approximately 0.00077 cm³ per cm³ of volume
If a load and the boom is allowed to remain stationary for a
for 1°C of temperature change (0.00043 in³ per in³ of volume
period of time and the ambient temperature is cooler than the
for 1°F of temperature change). Thermal contraction will
trapped oil temperature, the trapped oil in the cylinders will
allow a cylinder to retract as the hydraulic fluid which is
cool. The load will lower as the telescope cylinder(s) retracts
trapped in the cylinder cools.
allowing the boom to come in. Also, the boom angle will
The change in the length of a cylinder is proportional to the decrease as the lift cylinder(s) retracts causing an increase
extended length of the cylinder and to the change in
temperature of the oil in the cylinder. For example, a cylinder
in radius and a decrease in load height.
2
This situation will also occur in reverse. If a crane is set up in
extended 7.6 m (25 ft) in which the oil cools 15.5°C (60°F)
the morning with cool oil and the daytime ambient
would retract approximately 196 mm (7 3/4 in) [see Table 2-9
temperature heats the oil, the cylinders will extend in similar
and Table 2-8]. The rate at which the oil cools depends on
proportions.
many factors and will be more noticeable with a larger
d i ff e r e n c e i n o i l t e m p e r a t u r e v e r s e s t h e a m b i e n t (Table 2-8) and (Table 2-9) have been prepared to assist you
temperature. in determining the approximate amount of retraction/
extension that may be expected from a hydraulic cylinder as
Thermal contraction coupled with improper lubrication or
a result of change in the temperature of the hydraulic oil
improper wear pad adjustments may, under certain
inside the cylinder. The chart is for dry rod cylinders. If the
conditions, cause a “stick-slip” condition in the boom. This
cylinder rod is filled with hydraulic oil, the contraction rate is
“stick-slip” condition could result in the load not moving
somewhat greater.
smoothly. Proper boom lubrication and wear pad adjustment
is important to permit the boom sections to slide freely. Slow
Grove Published 4-23-2021, Control # 513-03 2-41
--- Page 9 ---
RT765E-2 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES
SECTION 3
OPERATING CONTROLS AND PROCEDURES
SECTION CONTENTS
Controls and Indicators . . . . . . . . . . . . . . . . . . . . . 3-2 Engine Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Steering column . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Engine Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Turn Signal Lever and Windshield Wiper/Washer/ Diesel Particulate Filter . . . . . . . . . . . . . . . . . . . . . 3-9
Headlight /Horn Controls. . . . . . . . . . . . . . . . . . . . 3-3 Right Turn Signal Indicator . . . . . . . . . . . . . . . . . 3-10
Steering Column Tilt Lever . . . . . . . . . . . . . . . . . . 3-3 Inhibit Exhaust System Cleaning . . . . . . . . . . . . . 3-10
Park Brake Control Switch . . . . . . . . . . . . . . . . . . 3-3 Diesel Exhaust Fluid . . . . . . . . . . . . . . . . . . . . . . 3-10
Headlights Switch . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 High Exhaust System Temperature. . . . . . . . . . . 3-10
Drive Axle Selector Switch . . . . . . . . . . . . . . . . . . 3-3 Engine Wait-to-Start . . . . . . . . . . . . . . . . . . . . . . 3-10
Hazard Lights Switch . . . . . . . . . . . . . . . . . . . . . . 3-3 Four-Wheel Drive Engaged . . . . . . . . . . . . . . . . . 3-10
Engine Diagnostics Switches . . . . . . . . . . . . . . . . 3-3 Axle Differential Locked . . . . . . . . . . . . . . . . . . . . 3-10
Ignition Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4 Rear Wheels Not Centered Indicator. . . . . . . . . . 3-10
Transmission Shift Lever . . . . . . . . . . . . . . . . . . . 3-4 Engine Coolant Temperature Gauge. . . . . . . . . . 3-10
Cab Overhead Controls . . . . . . . . . . . . . . . . . . . . . 3-4 Fuel Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Skylight Window Latch . . . . . . . . . . . . . . . . . . . . . 3-4 Low Fuel Level. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Skylight Wiper and Wiper Motor . . . . . . . . . . . . . . 3-4
Skylight Sunscreen . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Battery Charge Indicator . . . . . . . . . . . . . . . . . . . 3-11
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
3
Dome Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Cab Circulating Fan . . . . . . . . . . . . . . . . . . . . . . . 3-5 DEF Level and Gauge . . . . . . . . . . . . . . . . . . . . . 3-11
Right Side Window Latch . . . . . . . . . . . . . . . . . . . 3-5 Control Seat Assembly (Single Axis) . . . . . . . . . 3-12
Overhead Control Panel. . . . . . . . . . . . . . . . . . . . . 3-5 Main Hoist Control (Single Axis Option) . . . . . . . 3-12
Heater/Air Conditioner Fan Switch . . . . . . . . . . . . 3-5 Boom Lift Control (Single Axis Option) . . . . . . . . 3-12
Heater Control Switch . . . . . . . . . . . . . . . . . . . . . . 3-5 Boom Lift and Main Hoist Control Lever
Air Conditioner Switch. . . . . . . . . . . . . . . . . . . . . . 3-5 (Dual Axis Option — Not Shown) . . . . . . . . . . . . 3-12
Skylight Wiper Switch . . . . . . . . . . . . . . . . . . . . . . 3-5 Main Hoist Speed Selector Switch. . . . . . . . . . . . 3-12
Panel Dimmer Switch . . . . . . . . . . . . . . . . . . . . . . 3-5 Telescope or Auxiliary Hoist Control