Section Contents
8.3
BEST BY FARR
TM
14 1/2" Closed Mouth Trailer-Mounted Bucking Unit
Technical Manual
B. REMOVING THE DISTRIBUTOR
Remove the 5 closing bolts of the distributor. Lift off the distributor cover and the distributor rotary [1]. Take
out the distributor drive pin and the distributor centering bush. If the distributor is of the type with the
bronze bearing disc, remove also the two locating pins.
IMPORTANT: THE WORKING SURFACES OF DISTRIBUTOR ROTARY, DISTRIBUTOR
DISC & MOTOR COVER MUST NOT BE SCRATCHED OR DAMAGED IN ANY WAY.
C. REMOVING THE MOTOR COVER
Remove motor cover closing bolts. With an appropriate jacking plate, using the distributor bolt holes and
levering on the shaft through the distributor drive pin hole, lift off the motor cover. Remove the motor cover/
body seals and locating pins.
See Section 8.1.B, Page 8.2, Special Tool #1
D. REMOVING THE REAR RETAINING RINGS
Using appropriate snap ring pliers, remove the retaining clip. Take off the spring and the retaining ring.
E. REMOVING THE CYLINDERS
Rotate the shaft so that the piston of the cylinder to be removed is fully extended. By hooking a finger
under the piston lift up the piston, tapping the cylinder trunnion with a rubber hammer to loosen the piston
from the shaft. Lift out the cylinder and piston. The piston may be extracted for inspection of seals and
working surfaces.
See Section 8.1.B, Page 8.2, Special Tool #2
F. REMOVING THE SHAFT
It is advisable to place a protective covering over the spline of the shaft (e.g., tape) before extraction to
avoid damaging the shaft seal. Motors with roller bearings: lift out the shaft. Motors with ball bearings:
remove the shaft by tapping on the end of the shaft with a rubber hammer.
G. REMOVING THE SHAFT BEARINGS
If it is necessary to replace the shaft bearings, the bearing races can be removed from the shaft or from
the motor cover or body using appropriate extractor jacks.
IMPORTANT: IF THE BEARINGS DO NOT NEED TO BE REPLACED IT IS RECOM-
MENDED THAT THE BEARING RACES ARE NOT REMOVED FROM THE MOTOR
COVER OR BODY.
Hydraulic Motor Service Information
(45 Seiten)
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