Mec 3072RT - Drive Motors Description and Service

"3072RT / 3772RT / 3772RT HD" Service & Parts Manual - ANSI Specifications March 2008
Page 3-5
MOTOR
HOUSING
MOTOR
HUB
DRIVE
MOTOR
DRIVE
MOTOR
RELIEF
VALVE
MOTOR
HUB
MOTOR
HOUSING
Drive Motors
There are two (2) hydraulic motors on the front axle and two (2) drive motor brakes on the rear
drive axle. These can be damaged or leaks may occur; repair or replace as necessary.
CAUTION:
• Clean all fittings before disconnecting hoses.
• Tag hoses for proper reassembly.
• Plug all openings to prevent contamination.
Front Drive Motors
Remove
1. Raise and support the front end of machine
(see
Raising the Machine ).
2. Remove the wheel and tire as-
sembly to access drive motor.
3. Remove the hub from the drive
motor shaft.
4. Disconnect the cylinder end and
tie-rod from the motor housing.
5. Turn the motor housing to gain
access to the motor and hose
assemblies.
6. Disconnect hose assemblies from drive motor.
7. Remove the cap screws and remove the drive motor.
Replace
Installation is reverse of removal.
Rear Drive Motor with Brakes
Remove
1. Raise and support the rear end of machine
(see Raising the Machine ).
2. Remove the wheel and tire assembly to
access drive motor.
3. Disconnect hose assemblies from
drive motor.
4. Remove the relief valve.
5. Remove the cap screws and
remove the drive motor from the
housing.
Replace
Installation is reverse of removal.