MAINTENANCE AND LUBRICATION GRT880 SERVICE MANUAL
9-26
Published 10/19/2017, Control # 618-00
Boom (Continued)
NOTE: Crane Setup: Machine shall be set up on firm level surface with fully extended outriggers and minimum 9979 kg
(22,000 lb) counterweight installed. Ensure crane is level.
• Boom must be directly over the front with house lock engaged.
• Set boom angle at zero degrees (0°).
• Do not exceed 35 m (115 ft) boom length in Auto Mode A.
• Do not exceed 27.4 m (90 ft) boom length in Auto Mode B.
• All lubrication points can be accessed by operating crane in the 0001 RCL mode using A or B boom configurations.
CAUTION: Do not operate crane in RCL bypass to lubricate the boom.
Item
Lube Point
Description
Figure No.
Approved
Lubricant
Lube Capacity Lube Interval Application
89 Boom Pivot Shaft Figure 9-14 L
Until grease
extrudes.
250 hours or 3 months. 4 grease fittings
90
Upper Boom
Nose Sheave
Figure 9-14 A ---
Apply grease at
assembly or tear down.
91
Lower Boom
Nose Sheave
Figure 9-14 A ---
Apply grease at
assembly or tear down.
92
Auxiliary Boom
Nose Sheave
Figure 9-14 A
Until grease
extrudes.
250 hours or 3 months. 1 grease fitting.
93 Mast Sheave
Figure 9-14 A
Until grease
extrudes.
500 hours or 12
months.
1 grease fitting.
94 Jib Sheaves
Figure 9-14 A
Until grease
extrudes.
250 hours or 3 months. 2 grease fittings.
FIGURE 9-14
90
89
93
92
91
87
94
94
8900-1
Reference Only