Manitowoc Grove GRT8120 User Manual

MAINTENANCE AND LUBRICATION GRT8120 OPERATOR MANUAL
6-44 Published 3-22-2021, Control # 702-02
Item
Lube Point
Description
Figure No.
Approved
Lubricant
Approximate
Capacity
Service Interval
Service
Application
Hoist Lubrication
110
Hoist Drums
(Main & Auxiliary)
Figure 6-23 H 4 L (1.05 gal)
Every 50 hours of
service, or weekly,
whichever interval
comes first
CHECK oil level
2 service points
REMOVE vent or
hose from top of the
sight glass to FILL
FILL hoist drums
to LEVEL visible
in sight glass
2 service points
See NOTE 48.
See NOTE 49.
See NOTE 51.
CHECK and CLEAN
breather, as needed
Every 1000 hours,
or 12 months of
service, whichever
interval comes first
REMOVE plug or
hose from bottom of
sight glass to
DRAIN oil
DRAIN hoist drums
2 service points
FILL hoist drums to
LEVEL visible in
sight glass
See NOTE 48.
See NOTE 49.
See NOTE 51.
CHECK and CLEAN
breather, as needed
111
Hoist Rope
Rollers
Figure 6-23 A
Brush on
outer surface
of roller
Every 250 hours, or
3 months of service,
whichever interval
comes first
BRUSH ON
2 service points
See NOTE 48.
See NOTE 50.
112 Hoist Bearings Figure 6-23 A
Until grease
extrudes from
entire bearing
circumference
Every 250 hours, or
3 months of service,
whichever interval
comes first
LUBRICATE
2 service points
See NOTE 48.
See NOTE 51.
NOTE 48: DO NOT USE non semi-synthetic lubricant. Use of non-approved lubricant may damage components.
NOTE 49: Check oil level in hoist drum sight glass. Hoist oil level MUST be between the high and low marks on sight
glass. If oil is not visible, hoist may be underfilled. If oil is escaping from the vent plug, hoist may be overfilled.
NOTE 50: If the weather is very bad or operating conditions are poor, then more frequent intervals are necessary. Monitor
the service points and adjust lubrication intervals, as necessary.
NOTE 51: Before operating crane in cold weather (arctic) ambient temperatures below -9°C (+15°F), Standard bearing
grease must be fully purged and replaced with Cold Weather bearing grease meeting Grove U.S. L.L.C.
specifications as shown in Table 6-4: Approved Lubricant Reference Table, page 6-11 in this Operator Manual.
See also your GRT8120 Service Manual for maintenance and lubrication instructions.

Manitowoc Grove GRT8120 Specifications

General

Brand	Manitowoc
Model	Grove GRT8120
Category	Construction Equipment
Language	English