Great Plains YP3025A Operator Manual - Manual (Page 105)

Great Plains Manufacturing, Inc. Table of Contents Index Maintenance and Lubrication 101
02/16/2012 Table of Contents Index 401-705M
Hydraulic Maintenance
Hydraulic Drive Maintenance
As with any hydraulic system, contamination is the most
common cause of performance problems and pre-
mature wear. Make a special effort to properly clean
quick couplers prior to attaching the hoses to tractor.
Filter: All fluid is filtered through the high pressure filter
(p/n 18574) and it provides protection to the hydraulic
components of your drive if properly maintained. It is
equipped with a pop-out indicator to alert that the
replaceable element is clogged, and should be changed
immediately if this situation occurs. Normal service life of
the element will vary based on the precautions that you
take to minimize contamination at the couplers and rou-
tine service of the tractor filtration.
To change the element:
Refer to Figure 117
1.
Un-screw lower canister from filter, catching and dis-
posing of used fluid.
2. Remove and discard element.
3. Install new element (p/n 19856)
4. Clean canister threads and lube O-ring with hydrau-
lic fluid, then re-install.
Refer to Figure 118
5.
Re-set pop-out indicator if necessary.
It is a good idea to keep a filter element on hand, and
Great Plains recommends changing filters annually, if not
more often.
• Between planting seasons, store cab console inside in
a relatively stable and dry environment.
• Avoid direct spray from high pressure washers on the
motor encoder and the external controller box. These
units are sealed from normal moisture, but high pres-
sure could inject water into the housing.
• Keep electrical connects free from dirt and grease. It’s
a good idea to occasionally spray the terminals with
contact cleaner to ensure proper connection.
Null4:
Null4:
Figure 117
Hydraulic Filter
22736
Null4:
Figure 118
Hydraulic Filter Indicator
22737