Manitowoc Grove GRT8120 User Manual

Grove Published 3-22-2021, Control # 702-02 6-33
GRT8120 OPERATOR MANUAL MAINTENANCE AND LUBRICATION
6
Telescope Section 6 (Tele 6)
1. Select the Manual Telescope Mode function icon in
the Operator Display Module (ODM) to enter Manual
Telescope Mode.
2. Make sure that the tele cylinder is locked to Tele 6.
3. Extend and lock Tele 6 to the 100% pinning location.
4. Extend and lock Tele 5 to the 50% pinning location.
5. Lower the boom to 0° and perform the following greasing
in this position:
a. Grease outer sides of Tele 6 in the areas that touch
the front wear pads of Tele 5.
b. Grease the rear upper wear pads of Tele 6 on both
sides, at the grease fittings (1, Figure 6-17), through
the openings in Tele 5.
c. Grease locking pins on both sides (2, Figure 6-17).
NOTE: To grease the rear upper wear pads of Tele 56 at
the 50% or 89% pinning locations, extend and lock
Tele 6 to these pinning locations and repeat
Step 5b greasing.
6. While in the horizontal position, first retract Tele 5, and
then retract and extend Tele 6 several times to make
sure that grease is properly distributed.
7. When Tele 6 greasing is complete, retract and lock
Tele 6 to the 0% pinning location.
8. Raise boom to 70°.
Boom Lubrication
READ FIRST! IMPORTANT CRANE SET-UP INFORMATION!
1. With crane set on a firm level surface and a minimum 29,200-lb counterweight installed, fully extend the outriggers, and
level the crane.
2. Center the boom over the front of the crane, engage the turntable swing lock pin, and disable the swing function.
3. Fully retract the boom and set boom angle to 70°.
4. Limit rigging to an overhaul ball or a hook block of no more than 2000 lb.
5. Program the RCL to Rigging Code 0001. Do Not Override the RCL with the Limit Bypass Switch to service the boom.
6. Use the Manual Telescope Mode in the ODM to extend and retract the Telescope Sections in the sequences given.
7. To grease rear upper wear pads, front wear pads, and locking pins on each Tele Section, extend boom to the
sequences given in the following chart.
8. Start with Tele Section 6 (Tele 6).
If necessary, refer to the following detailed procedures to lubricate the boom in Manual Telescope Mode.
To Grease
Tele 6
To Grease
Tele 5
To Grease
Tele 4
To Grease
Tele 3
To Grease
Tele 2
To Grease
Tele 1
Tele 1 0 00050100
Tele 2 0 0050 100 0
Tele 3 0 050100 0 0
Tele 4 0 50 100 000
Tele5 50 100 0 000
Tele 6 100 00000
FIGURE 6-17
2
1
BOOM SERVICE LOCATIONS –
REAR UPPER WEAR PADS AND LOCKING PINS
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Manitowoc Grove GRT8120 Specifications

General

Brand	Manitowoc
Model	Grove GRT8120
Category	Construction Equipment
Language	English