MAINTENANCE AND LUBRICATION GRT880 SERVICE MANUAL
9-22
Published 10/19/2017, Control # 618-00
Boom
NOTE: Crane Setup: Machine shall be set up on firm level surface with fully extended outriggers and 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°).
• All lubrication points can be accessed by operating crane in the 0001 RCL mode using B boom configuration.
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
80
Hook Block
Swivel Bearing
Figure 9-11 A
Until grease
extrudes.
250 hours or 3 months. 3 grease fittings.
81
Hook Block
Sheaves
Figure 9-11 --- --- 250 hours or 3 months.
Inspect.
See note
immediately below.
NOTE: Rotate sheaves and check for rough or dry operation. Look for grease leakage. Replace sheave if either is found.
82 Headache Ball
Figure 9-11 A
Until grease
extrudes.
250 hours or 3 months. 1 grease fitting.
FIGURE 9-11
8603
8604
80
80
81
82
82
8604-1
Reference Only