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Grove GRT880
Manitowoc Grove GRT880 Service Manual
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Service Manual
Grove GRT880
Reference
Only
2
Table of Contents
Table of Contents
5
Section 1
13
Overview of Manuals
13
Customer Support
14
General Crane Design
14
Specific Crane Description
14
Lifting Capacities (Load Chart)
14
Basic Components
14
Axle Weight Distribution
14
Serial Number Location
14
Transportation and Lifting Data
14
List of Specifications
15
General
15
Dimensions
15
Capacities
15
Torque Converter
15
Transmission
15
Engine
15
Axles
15
Brakes
15
Wheels and Tires
15
Hydraulic Pumps
16
Hoists
16
Crane Nomenclature
19
General Maintenance
20
Cleanliness
20
After Cleaning
20
Removal and Installation
20
Disassembly and Assembly
20
Pressing Parts
21
Locking Devices
21
Wires and Cables
21
Shims
21
Hoses and Tubes
21
Bearings
22
Gaskets
22
Batteries
22
Hydraulic Systems
23
Hydraulic Fittings
24
Electrical System
26
Fatigue of Welded Structures
26
Loctite
26
Fasteners and Torque Values
27
Weld Studs
40
Wire Rope
41
General
41
Environmental Conditions
41
Dynamic Shock Loads
41
Lubrication
41
Precautions and Recommendations During Inspection or Replacement
41
Wire Rope Inspection (Running Ropes and pendant Cables)
42
Wire Rope Inspection (Boom Extension and Retraction Cables)
43
Wire Rope Inspection/Replacement (All Wire Rope)
43
Seizing Wire Rope
44
Installing 35X7 Class Wire Rope
45
Procedures for Cutting and Preparing 35X7 Class Wire Rope
45
Section 2
47
Description
49
Hydraulic Symbols
49
Maintenance
51
Preparation
51
Hydraulic System Maintenance Precautions
51
Label Parts When Disassembling
51
Hydraulic Oil Recommendations
51
Draining and Flushing
51
Removing Air from the Hydraulic System
52
Parts Replacement
53
Directional Control Valves
53
Visual Inspection of Hoses and Fittings
54
Supply Pressure and Return Circuit
55
Description
55
Hydraulic Pump Distribution
57
Troubleshooting
58
Troubleshooting Aids
59
Troubleshooting Procedures
59
Hydraulic Oil Return Filter Assembly
60
Fill Cap/Breather
60
Oil Cooler
62
Description
62
Maintenance
62
Hydraulic Pumps
64
Description
64
Maintenance
66
Pressure Setting Procedures
69
Checking/Setting the Piston Pumps Cut-Off and Differential Pressures
70
Checking/Setting the Main Directional Control Valve, Hoists, Lift, and Telescope Pressures
72
Checking/Setting the Pilot Supply Pressure
76
Checking/Setting the Front Steer Pressure
76
Checking/Setting the Swing Brake Release Pressure
77
Checking the Swing Work Pressure
77
Checking the Service Brake Accumulator Charging Valve Pressure
78
Checking the Service Brake Accumulators Pre-Charge
79
Pre-Charging the Accumulators
80
Checking/Setting Cab Tilt, Counterweight Removal, and Counterweight Pinning Pressures
81
Checking/Setting the Outriggers, Rear Steer, and Hydraulic Transmission Oil Cooler Fan Motor Pressures
82
Checking/Setting the Axle Lockout Circuit Pressure
84
Checking/Setting the Luffing Jib Pressure
84
Valves
85
General
85
Main Directional Control Manifold Valve
88
Description
88
Maintenance
88
Swing Manifold Valve
92
Description
92
Maintenance
92
Compact Manifold Valve
95
Description
95
Maintenance
95
Accessory Manifold Valve
98
Description
98
Maintenance
98
Lift Cylinder and Telescope Cylinder Control Valves
102
Description
102
Maintenance
102
Carrier Combination Manifold Valve
103
Description
103
Maintenance
103
Outrigger Control Manifold
107
Description
107
Maintenance
107
Range Shift/Park Brake Manifold Valve
109
Maintenance
109
Description
109
Maintenance
110
Telescope and Tele Fill Stage Select Manifold Valve
110
Description
110
Maintenance
112
Dual Accumulator Charge Manifold Valve
112
Description
112
Maintenance
114
Hydraulic Brake Accumulator
114
Description
114
Cylinders
115
Cylinder Rod Surface Protection
115
Leak Check
115
Temperature Effects on Hydraulic Cylinders
116
Description
119
General
119
Alternator
119
Batteries and Battery Disconnect Switch
120
Cab Electrical Panel
120
Carrier Electrical Panel
125
Maintenance
129
General
129
General Troubleshooting
130
Tools for Troubleshooting
130
Swivel Electrical Troubleshooting
130
Connector Troubleshooting
130
Alternator/Charging System Troubleshooting
132
Replace Alternator
132
Starter Replacement
133
Battery Replacement
133
Relay Panel Components
134
Steering Column and Dashboard
134
Windshield Wiper Assembly Replacement
138
Windshield Washer Assembly Replacement
138
Skylight Wiper Assembly Replacement
139
Adjusting Electronic Joysticks
140
Fault Codes
140
Optional Equipment
144
Beacon Light
144
Boom Mounted Floodlights
144
Rear View Mirror
144
Air Conditioner
144
Cold Weather Operation
145
Section 4
147
Description
147
Theory of Operation
148
Boom Removal
148
Boom Disassembly
161
Boom Nose Sheaves Removal and Installation
175
Removal
175
Installation
175
Boom Assembly
175
Boom Installation
195
Boom Functional Check
197
Boom Inspection
197
Boom Alignment and Servicing
197
Boom Extension and Retraction Cables
197
Maintenance
197
Inspection
197
Cable Tensioning Check and Adjustment
197
Telescope Circuit
199
Description
199
Theory of Operation
199
Maintenance
200
Removal and Installation
201
Disassembly and Assembly
201
Lift Circuit
202
Description
202
Theory of Operation
202
Maintenance
202
Lift Cylinder Removal
204
Lift Cylinder Installation
204
Hook Block
207
Description
207
Maintenance
207
Adjusting Boom Extension Stowage Mounts
208
Description
211
Theory of Operation
211
Maintenance
212
Warm-Up Procedure
212
Hoist Area Access
212
Installing Cable on Hoist
213
Removing/Installing the Hoist
214
Removing
214
Installing
214
Functional Check
214
Hoist Fluid Level Check
214
Usage and Inspection
216
Preventative Maintenance
216
Oil Sampling
217
Brake Test Procedure
218
Motor, Motor Control Valve, and Brake
218
Description
218
Hoist Rotation and Minimum Wrap Indicator System
219
Description
219
Maintenance
219
Hoist Rotation and Minimum Wrap Indicator
219
Hoist Control Valves
220
Description
220
Removable Counterweight
221
Counterweight Control Panel
221
Removing
222
Installing
222
Description
223
Theory of Operation
224
Swing Drive
224
Swing Brake
224
Maintenance
226
Swing Motor
229
Description
229
Maintenance
229
Swing Gearbox and Brake
230
Description
230
Maintenance
230
Swing Bearing
232
Description
232
Maintenance
232
Swivels
237
Description
237
Hydraulic Swivel
239
Description
239
Theory of Operation
239
Maintenance
239
Two Port Water Swivel
241
Description
241
Maintenance
241
Electrical Swivel
242
Description
242
Theory of Operation
242
Maintenance
242
Swing Lock Pin
243
Description
243
Maintenance
244
360° Swing Lock Control (Positive Lock Type) (Optional)
244
Description
244
360° Swing Lock Control (Positive Lock Type)
244
Engine
245
Description
245
Maintenance
246
Electronic Control System
248
Description
248
Engine Control System Indicator Lights
248
Fuel System
249
Description
249
Maintenance
249
Air Intake and Exhaust System
251
Description
251
Air Intake
251
Charge-Air Cooler System
256
Exhaust System
257
Slip Joint Exhaust Connectors - Tier 3 and 4
257
Water Cooling System
260
Description
260
Maintenance
260
Radiator Fill and Servicing
264
Drive Train
266
Description
266
Maintenance
266
Transmission/Torque Converter
267
Description
267
Theory of Operation
267
Maintenance
268
Towing or Pushing
272
Description
273
Maintenance
273
Wheels and Tires
276
Typical Wear Patterns
276
Description
276
Maintenance
276
Steering Systems
279
Description
279
Maintenance
279
Rear Axle Oscillation Lockout System
282
Description
282
Theory of Operation
282
Axle Oscillation Lockout Cylinders
284
Axle Oscillation Lockout Valve
284
Brake System
284
Description
284
Theory of Operation
285
Maintenance
286
Service Brakes
287
Description
287
Maintenance
287
Corrosion Protection
291
Parking Brake Actuator
293
Description
293
Maintenance
293
Parking Brake
294
Description
294
Maintenance
294
Park Brake Solenoid Valve
296
Outrigger
297
Outrigger Circuit
297
Maintenance
298
Outrigger Beam
301
Extension Cylinder
304
Outrigger Monitoring System (Optional-Standard in North America)
304
Jack Cylinder
305
General
307
Environmental Protection
307
Lubricants and Lubrication Intervals
308
Standard Lubricants
309
Arctic Lubricants and Conditions
311
Cylinder Rod Surface Protection
314
Wire Rope Lubrication
314
Lubrication Points
314
Cranelube
314
Cummins Oil Registration List
315
Safety
315
Drive Train
317
Drive Train (Continued)
319
Drive Train (Continued)
320
Steering and Suspension
321
Steering and Suspension (Continued)
322
Axles
323
Turntable
324
Turntable (Continued)
324
Cab Tilt
325
Outriggers
326
Lift Cylinder
327
Boom (Continued)
328
Hoist
333
Hydraulic
334
Rust Protection
335
Cleaning Procedures
335
Inspection and Repair
336
Application
336
Areas of Application
336
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Manitowoc Grove GRT880 Specifications
General
Brand
Manitowoc
Model
Grove GRT880
Category
Construction Equipment
Language
English
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