Owners Manual v.3 Owner's manual

14
5 INCH CHIpper
SERVICE AND MAINTENANCE
System pressure is controlled by the hydraulic control
valve, which is set at 2500 PSI.
In the unlikely event the the oil is completely drained
from the hydraulic system, oil must be added and any air
bubbles must be purged from the system. To do this:
1. Make sure all system components (reservoir, ttings,
etc.) are clean before starting the hydrostatic pump.
2. Fill the reservoir with recommended hydraulic uid.
Filter uid before lling the reservoir.
3. Fill the inlet line leading from the reservoir to the hy-
draulic pump before start-up. Loosen the tting on the
pump inlet line until oil bleeds out.
4. Start the engine and run at the lowest possible
RPM.
5. The oil level in the reservoir drops and bubbles may
appear in the uid as air is purged from the unit. Rell
the reservoir as necessary.
6. Run the unit and move the control arm in both direc-
tions for several minutes until any remaining air is
purged from the unit. Rell the reservoir as neces-
sary.
7. Check to ensure the feed roller stops when the control
arm is in the neutral position.
8. Shut down the engine or disengage PTO, check for
and correct any uid leaks, and check the reservoir
level. Add uid if necessary.
Check the reservoir daily for proper fluid level, the
presence of water (noted by a cloudy to milky appearance,
or free water in bottom of reservoir), and rancid uid odor
(excessive heat). The hydraulic pump normally does not
require regular uid changes.
Premium hydraulic uids containing high quality rust,
oxidation, and foam inhibitors are required. These include
premium turbine oils, API CD engine oils per SAE J183,
M2C33F or G automatic transmission fluids meeting
Allison C-3 or Caterpillar TO-2. and certain specialty
agricultural tractor uids.
The hydraulic oil lter should be changed after the rst
50 hours and every 200 hours thereafter or at annual
intervals. The uid and lter should be changed and
system cleaned if the uid becomes contaminated with
foreign matter (water, dirt, grease, etc.) or if the uid has
been subjected to temperature levels greater than the
maximum recommended.
The lter is located underneath the hydraulic reservoir.
To change the hydraulic oil lter:
Using an oil filter wrench, unscrew the filter.1.
Once the filter becomes loose, turn it out the rest of 2.
the way with your hand.
Properly discard old filter.3.
Lube the rubber seal on the new filter (PN 16588) with 4.
clean hydraulic oil.
Install the filter onto the threaded pipe. Turn with your 5.
hand until the filter is finger tight.
Turn, by hand, another 1/2 turn.6.
Check hydraulic oil level and fill if necessary.7.
CAUTION
Handle pressurized hydraulic uid carefully. Escaping
pressurized hydraulic uid can have sufcient force to
penetrate your skin causing serious injury. This uid
may also be hot enough to burn. Serious infection or
reactions can develop if proper medical treatment is
not administered immediately.
5.10 FILLING HYDRAULIC FLUID
Hydraulic systems contain uid under high pressure.
Never check for leaks with your hands. Relieve
pressure before disconnecting any hydraulic lines.
CAUTION
5.11 CHANGING HYDRAULIC OIL FILTER
HYDRAULIC
FILTER