MacDon R85 Rotary Disc 13 Foot Pull-Type User Manual
Page 84
MAINTENANCE AND SERVICING
Form 169454
82
Revision A
7.10.2 Hydraulic Oil Filter
NOTE
Change hydraulic oil filter after the first
100 hours operation, and every 250 hours
thereafter.
a. Clean around the filter head (A).
b. Remove the filter (B), and clean the gasket
surface of the filter head.
c. Apply a thin film of clean oil to the gasket on the
new filter.
d. Install new filter. Turn the filter onto the mount
until the gasket contacts the filter head. Tighten
the filter an additional 1/2 to 3/4 turn by hand.
IMPORTANT
Do not use a filter wrench to install the
filter. Over-tightening can damage gasket
and filter.
7.10.3 Pressure Relief Valve
A possible cause of poor cutting performance
and/or excessive heating of hydraulic oil is low
relief pressure.
The relief valve (C) is factory-set at 6000 psi
(41.37 MPa). See your Dealer for adjustment or
service.
C
B
A
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