6.9.If the brake assembly is to be transferred to the new hydro motor: remove the cotter pin from the castle nut that holds the hub to the axle.
6.10.Loosen, but do not remove the castle nut from the axle using a 11/2” socket.
NOTE: It may be necessary to set the parking brake while loosening the nut. Release the parking brake afterward.
NOTE: The studs are pressed into the brake drum. The brake drum effectively is the drive hub. The drive hub mounts on an narrow taper.
6.11.Remove the hairpin clip that secures the brake link to the brake arm. Pivot the arm out of the way. See Figure 6.13.
HAIRPIN CLIP | BRAKE |
| LINK |
BRAKE |
|
ARM |
|
HIGH |
|
PRESSURE | COTTER |
LINES | PIN |
| CASTLE |
| NUT |
Figure 6.11
6.12.Place a catch pan under the hydro motor, and have two 1/2” JIC plugs within reach.
M48 Tank
6.13.Disconnect the high pressure lines from the the hydro motor one at a time using a 7/8” wrench. A 1” wrench may be required to hold the fittings on the hydro motor. Plug the lines.
See Figure 6.13.
DISCONNECTMOUNTING
BOLTS
Figure 6.13
6.14.Remove the four sets of nuts and bolts that hold the hydro motor to the hydro motor frame assembly using 3/4” wrenches.
6.15.Lift the motor slightly and carefully pull it out far enough to remove the motor plate from the end of the four bolts. See Figure 6.15.
MOTOR
PLATE
MOTOR SPACERS
Figure 6.15
NOTE: The hydro motor weighs nearly 50 lbs.
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