JLG 4017 Service Manual - Manual (Page 81)

6.5 4017
Transmission:
23. Remove the ten bolts and washers holding the
transmission to the engine.
24. Remove the four capscrews and four lockwashers
securing each rear transmission mount to the
transmission.
25. Remove the two transmission mounts from the
machine.
26. Inspect the rubber mounts. Replace the mounts if
damaged.
27. Carefully remove the transmission from the machine.
Avoid causing damage to the transmission or
surrounding parts.
28. Lift the transmission clear of the machine, and lower
it onto suitable supports or secure it to a stand built
especially for transmission or engine service. Secure
the transmission so that it will not move or fall.
29. Remove any external transmission components as
required, including the transmission temperature
switch, and inlet and outlet cooler hose fittings.
Cover all transmission openings.
30. Remove the transmission oil filter (1) and dispose of
properly. Clean the filter mounting surface. Cover or
cap the oil filter mount.
31. If transmission oil is suspect of contamination or
torque converter is damaged, remove the converter
and flex plate from the transmission.
32. Remove the six bolts and washers holding the
converter to the flex plate.
6.6.2 Transmission Inspection and Internal
Repair
The converter is now ready for inspection and/or further
service.
If replacing the entire transmission, transfer the
transmission temperature switch to the replacement
transmission. The gear shift solenoids are included with a
new transmission.
For internal service, refer to the Dana Spicer Transmission
Repair Manual (P/N 31200163).
6.6.3 Transmission Installation
1. Install both the rear transmission mounts on the
transmission. Torque capscrews to120 Nm
(88 lb-ft).
2. Install two guide studs near the top of the bell
housing holes.
3. Use a hoist or overhead crane and sling attached to
the lifting eye at the top of the transmission. Raise
and position the transmission within the chassis.
4. Align the torque converter, align the transmission
bolt holes with the two studs in the bell housing.
Install the eight bolts and washers and torque to
63 Nm (46 lb-ft). Remove the two alignment studs
and install and torque the last two transmission
mounting bolts.
5. Install the two rear transmission mounting bolts on
the frame with two capscrews and two lockwashers.
Apply Loctite
® 242 threadlock to the transmission mount
bolts and torque to 210 Nm (155 lb-ft).
6. Turn the engine over slowly by hand and align each
of the eight flex plate bolts to be accessed. Install
them one at a time. Torque to
35-39 Nm (26-29 lb-ft).
Replace access plug.
7. Remove the hoist or overhead crane and sling.
8. Connect the transmission temperature switch
connector and shift solenoid wiring harness
connectors.
9. Secure the wiring harness to the transmission
housing.
10. Uncap and connect the transmission oil cooler inlet
and outlet hoses at the transmission.
11. Install the hydraulic pump. Refer to Section 8.6.3,
“Pump Replacement.”
12. Install drive shafts. Refer to Section 5.4.4, “Drive
Shaft Installation.”
13. Install air cleaner and tubing.
14. Clean the transmission oil filter mounting surface.
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