Grove Published 11-22-2016, Control # 345-12 3-19
RT9130E-2 SERVICE MANUAL ELECTRICAL SYSTEM
Inspection
1. Visually check the motor housing for evidence of cracks
or other damage. Check for excessive shaft end play
indicating worn or damaged bearings. Replace motor if
damaged.
2. Inspect the wiper blade for serviceability. Replace wiper
blade when worn.
3. Inspect the wiper arm and parts for damage. Replace as
needed.
Installation
1. Install sealant material around both holes in cab roof,
both inside and outside.
2. Install screw with nylon flat washer (from outside)
through mounting hole in cab roof.
3. Install flat nylon washer on motor shaft and insert motor
shaft through hole in cab roof. Position small nylon
washer and flat washer on screw between mounting
bracket and cab roof. Secure with lockwasher and nut.
4. Install nylon flat washer, leather washer, spacer, and nut
on motor shaft. Tighten nut.
5. Install wiper arm and blade on motor shaft.
6. Connect the electrical leads to the wiper motor as
marked before removal.
7. Turn the battery disconnect switch to the ON position.
Check
1. Operate the skylight wiper and verify it works. Replace
wiper blade as needed if it streaks or otherwise wipes
poorly.
Telescope Cylinder Charge System -
Electrical Schematic (If Equipped)
The telescope cylinder charge system prevents boom
retraction due to thermal contraction under certain operating
conditions. Refer to the sub-section titled Telescope Circuit,
page 4-24 for detailed information of this system’s operation.
Refer to Figure 3-11 for an electrical schematic of the
telescope cylinder charge system.
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