Table of Contents
Advertisement
Maintenance
Note: Determine the left and right sides of the machine
from the normal operating position.
Changing Hydraulic Fluid
Drain and replace the hydraulic system fluid whenever the
tractor fluid is changed, if fluid is not compatible with
tractor fluid, or if fluid becomes contaminated.
1. Start tractor, remove all cutting units, and raise lift arms
until all lift cylinders are fully retracted, then stop
tractor.
2. Disconnect supply/return hose couplers from tractor
couplers.
3. Disconnect supply/return hoses from frame control
valve and drain hoses into drain pan.
4. Disconnect hydraulic hoses connected to front row of
control valve, Row "A" (Fig. 33). Drain each hose into
drain pan and reconnect to valve.
3
1
Figure 33
1. Row "A"
2. Row "B"
5. Disconnect hydraulic hoses connected to back row of
control valve, Row "B" (Fig. 33). Drain each line and
cylinder by carefully pulling down lift arms until all
fluid is pumped out of hoses and cylinders and into
drain pan. Reconnect hoses to control valve.
2
3. #1 Lift cylinder
20
Note: #1 cylinder is not connected to a lift arm to aid in
draining cylinder. Extend cylinder using a winch or other
pulling devise.
6. Connect supply/return hoses to frame control valve.
7. Fill tractor hydraulic fluid reservoir to appropriate level,
using correct fluid.
8. Connect supply/return hose couplers to tractor valve
couplers.
9. Start tractor, raise lift arms until all lift cylinders are
fully retracted and then stop tractor.
Note: Do not manually pry lift arms up to retract cylinders,
or cylinder damage may result.
10. Check hydraulic fluid level in tractor. Add
approximately 2 gallons of appropriate hydraulic fluid
to raise fluid to proper level.
11. Start tractor and cycle lift arms up and down at least
two full cycles. Recheck hydraulic fluid level with lift
arms RAISED and add fluid if necessary .
12. Reinstall cutting units.
Wheel Bearings
To replace the wheel bearings proceed as follows:
1. Jack up the wheel being serviced. Support with jack
stand to prevent it from falling.
2. Remove the hub cap, cotter key, slotted nut, and washer
(Fig. 34).
Figure 34
Advertisement
Table of Contents
