Grove Published 11-10-2014, Control # 524-00 9-23
RT880E SERVICE MANUAL LUBRICATION
Item
Lube Point 
Description
Figure 
No.
Approved 
Lubricant
Lube 
Capacity
Lube Interval Application
Boom
70
Hook Block 
Swivel Bearing
Figure 9-8
EP-MPG
Extreme Pressure 
Multipurpose 
Grease 
6829003477
Until 
grease 
extrudes
250 hours or 3 months 1 grease fitting
71
Hook Block 
Sheaves
Figure 9-8
EP-MPG
Extreme Pressure 
Multipurpose 
Grease 
6829003477
Until 
grease 
extrudes
250 hours or 3 months
1 grease fitting per 
sheave (5 fittings 
total)
72 Headache Ball Figure 9-8
EP-MPG
Extreme 
Pressure 
Multipurpose 
Grease 
6829003477
Until 
grease 
extrudes
250 hours or 3 months 1 grease fitting
73
Telescope 
Cylinder Wear 
Pads
Figure 9-8
EP-MPG
Extreme Pressure 
Multipurpose 
Grease 
6829003477
Thoroughly 
coat
Every boom teardown 5 places by brush
NOTE:
• For service of the boom, that is to be extended greater than 120 ft, the counterweight must be installed on the turntable and the 
outriggers must be fully extended. Superstructure could be in any slew position. No rigging, no hookblock nor overhaul ball may 
be installed on the nose of the boom. Extend boom to desired length at a boom angle of 20°. Lower boom until RCL limits the 
boom lower function. Override RCL per RCL operators manual and lower boom to desired angle.
• Should boom chatter or rubbing noises in the boom occur, it will be necessary to lubricate the telescope cylinder wear 
pads. By adding an extension adapter to a grease gun the wear pads and wear areas can be reached through the 
lubrication access holes in the side of the boom and through the access hole in the boom nose between the sheaves.
• Lubricate more frequently than interval indicated in table if environmental conditions and/or operating conditions 
necessitate.
74
Internal Side and 
Bottom Wear 
Pads (Inner 
Sections)
Figure 9-8
EP-MPG
Extreme Pressure 
Multipurpose 
Grease 
A6-829-003477
Thoroughly 
coat all 
areas the 
wear pad 
moves on
250 hours or 3 months
14 places by brush; 
with boom in 
extended position 
through access 
holes in inner-mid 
and outer-mid 
sections
75
Boom Section 
Upper Wear 
Pads
Figure 9-8
EP-MPG
Extreme Pressure 
Multipurpose 
Grease 
A6-829-003477
Until 
grease 
extrudes
50 hours or 1 week
8 grease fittings; 
with boom in 
extended position 
through access 
holes
• For service of the boom, that is to be extended greater than 120 ft, the counterweight must be installed on the turntable and the 
outriggers must be fully extended. Superstructure could be in any slew position. No rigging, no hookblock nor overhaul ball may 
be installed on the nose of the boom. Extend boom to desired length at a boom angle of 20°. Lower boom until RCL limits the 
boom lower function. Override RCL per RCL operators manual and lower boom to desired angle.
• Lubricate more frequently than interval indicated in table if environmental conditions and/or operating conditions 
necessitate.