Grove Published 3-25-2020, Control # 643-04 5-21
GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION
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°).
• Do not exceed 38.2 m (125.5 ft) boom length in Auto Mode A.
• Do not exceed 33.8 m (111.1 ft) boom length in Auto Mode B.
• 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 5-11 A
Until grease
extrudes.
250 hours or 3 months. 3 grease fittings.
81
Hook Block
Sheaves
Figure 5-11 --- --- 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 Overhaul Ball
Figure 5-11 A
Until grease
extrudes.
250 hours or 3 months. 1 grease fitting.
FIGURE 5-11
8603
8604
80
80
81
82
82
8604-1
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