MAINTENANCE AND LUBRICATION GRT8120 OPERATOR MANUAL
6-14 Published 3-22-2021, Control # 702-02
Item
Lube Point
Description
Figure No.
Approved
Lubricant
Approximate
Capacity
Service Interval
Service
Application
Drive Train (Continued)
4 Fuel Filter Figure 6-2 — —
PERFORM every
500 hours of service,
or 6 months, which-
ever interval is first
REPLACE fuel filter
See NOTE 10.
5
Transmission and
Torque Converter
Figure 6-2 E 41.6 L (11 gal)
PERFORM every
10 hours of service,
or daily, whichever
interval comes first
CHECK fluid level
See NOTE 11.
See NOTE 12.
FILL transmission
sump to FULL on
DIPSTICK
See NOTE 15.
PERFORM after first
50 hours of service,
and
REPEAT after
another 50 hours for
a total of 100 hours of
service
DRAIN transmission
sump
See NOTE 13.
REPLACE trans-
mission and torque
converter filter
See NOTE 14.
CLEAN magnetic
drain plug
INSTALL magnetic
plug in drain port
FILL transmission
sump to FULL on
DIPSTICK
See NOTE 15.
Thereafter
PERFORM DRAIN
procedure, to include
REPLACING
transmission and
torque converter
filter, every 500 hours
of service, or
3 months, whichever
interval comes first
DRAIN transmission
sump
See NOTE 13.
REPLACE filter
See NOTE 14.
FILL transmission
sump to FULL on
DIPSTICK
See NOTE 15.
NOTE 10: The Fuel Filter is located on the inside right side of the frame adjacent to the engine.
NOTE 11: Check Transmission Fluid level using the dipstick (6
A) that is located on the right side of the carrier, behind the
steps, adjacent to the hydraulic tank. Check fluid level with boom fully retracted and lowered, and all outrigger
cylinders retracted.
NOTE 12: Level should be checked with engine running at 850 rpm idle and torque converter fluid temp at 65°C to 93°C
(150°F to 200°F). To bring fluid temperature to this range, it is necessary to work the crane or stall the converter.
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