JLG 600SC_660SJC Service Manual - Manual (Page 136)

SECTION 6 - UNDERCARRIAGE
6-32 – JLG Lift – 3120898
6.7 TRAVEL BRAKE VALVE
Removal
AT OPERATING TEMPERATURE, THE HYDRAULIC OIL IS HOT
AND UNDER PRESSURE. HOT OILS CAN CAUSE BURNS.
TO PREVENT POSSIBLE PERSONAL INJURY, RELEASE THE
PRESSURE IN THE IMPLEMENT HYDRAULIC CIRCUIT (BOOM,
STICK, BUCKET, AND SWING), TRAVEL CIRCUITS, AND THE
HYDRAULIC OIL TANK AT THE FILLER CAP BEFORE ANY
HYDRAULIC LINES OR COMPONENTS ARE DISCONNECTED OR
REMOVED.
R E M O VE T H E FI L L ER C A P O N L Y W H E N T H E EN G I N E I S
STOPPED AND THE FILLER CAP IS COOL ENOUGH TO TOUCH.
1. Release the hydraulic system pressure. Refer to Dis-
assembly and Assembly, Hydraulic System Pressure
- Release" in this manual.
2. Remove four bolts (1) and the washers that hold
cover assembly (2) Remove cover assembly (2).
NOTE: Care must be taken to ensure that fluids are con-
tained during performance of inspection, mainte-
nance, testing, adjusting and repair of the product.
Be prepared to collect the fluid with suitable contain-
ers before opening any compartment or disassem-
bling any component containing fluids.
Dispose of all fluids according to local regulations
and mandates.
3. When two hose assemblies (5) are disconnected
from the travel brake valve, oil will flow from the hose
assemblies. Collect the drain oil in a suitable con-
tainer. Disconnect two hose assemblies (5) from
travel brake valve (3). Put plugs in the ends of the
hose assemblies. Plugs prevent oil loss. Plugs pre-
vent contaminating the hydraulic system.
4. Remove six bolts (4) that hold travel brake valve (3)
to the travel motor. Remove the travel brake valve.
5. Remove the three O-ring seals from the travel motor.
6.8 TRAVEL MOTOR
Removal
Start by removing the travel brake valve. Refer to Disas-
sembly and Assembly, "Travel Brake Valve - Remove" in
this manual.
NOTE: Care must be taken to ensure that fluids are con-
tained during performance of inspection, mainte-
nance, testing, adjusting and repair of the product.
Be prepared to collect the fluid with suitable contain-
ers before opening any compartment or disassem-
bling any component containing fluids.
Dispose of all fluids according to local regulations
and mandates.
Table 6-14. Travel Motor Required Tools - Removal
Tool Part # Description Qty.
A 138-7574 Link Bracket 1
B 254 mm (10 inch) of M16
x20 Threaded Rod 2