MacDon PW8, Operator'S Manual

Page: 197 / 304

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183
Revision A
Figure 5.31: Rear Hydraulic Motor
–
Left Side
3. Disconnect hydraulic hoses (A) from motor. Install plugs
onto hose ends, or wrap with plastic and move hoses
away from work area. Loosen or remove adjacent cinch
straps if necessary.
IMPORTANT:
Keep hydraulic coupler tips and connectors clean.
Allowing dirt, dust, water, or foreign material to enter the
system is the major cause of hydraulic system damage.
Do
NOT attempt to service hydraulic systems in the
field. Precision fits require a perfectly clean connection
during overhaul.
4. Remove two 10 mm shoulder bolts (B) using an 8 mm
hex key.
5. Pull hydraulic motor (C) from roller shaft.
Installing Rear Hydraulic Motor
Figure 5.32: Rear Hydraulic Motor
–
Left Side
1. Apply grease (extreme pressure [EP] performance with
1.5
–
5% molybdenum disulphide, NLGI grade 2) to
splines of hydraulic motor shaft (A).
2. Install hydraulic motor (B) onto roller shaft, and secure
with two 10 mm shoulder bolts (C).
3. Torque bolts to 50 Nm (37 lbf
∙
ft) using an 8 mm hex key.
IMPORTANT:
Hydraulic motor must be able to move slightly during
operation. Tighten to required torque only, and do
NOT
use washers or shims. It is normal for the motor and the
hardware to feel somewhat loose after torquing.
4. Install hydraulic fittings (D) from original motor (if
installing new motor).
Figure 5.33: Rear Hydraulic Motor
–
Left Side
5. Reconnect hydraulic hoses (A) to motor.
6. Install previously removed cinch straps.
7. Close endshield. Refer to 3.3.2 Closing Left Endshield,
page 30 .
MAINTENANCE AND SERVICING