Operator's Manual

Hydraulic Drive System (continued)
Changing the Hydraulic Fluid and Filter for the Drive System
G376374
1. Park the machine on a level surface, move the
motion-control levers to the N
EUTRAL-LOCK
position, engage the parking brake, and lower
the hopper.
2. Shut off the engine, and remove the key. Allow
the engine to cool.
3. Lower the cushion and remove the fuel tank.
4. Remove the 9 bolts (5 rear
, 4 side ) from
the skid plate
and remove the skid plate.
5. Locate the drain plug
in the bottom of each
transmission, then place a drain pan under the
plugs.
6. Remove the drain plugs and allow the
hydraulic fluid to fully drain from the machine.
7. Remove the hydraulic-filter cap and hydraulic
filter
from each transmission.
8. Install a new hydraulic filter with the spring side
facing out and the hydraulic-filter cap for each
transmission.
9. Torque to 13 to 15 N∙m (115 to 135 in-lb).
10. Install the drain plugs.
11. Loosen the vent plug
in each transmission
until loose.
Note: This allows air to escape the hydraulic
system as you add hydraulic fluid.
12. Slowly add approximately 6.2 L (208 fl oz) fluid
to the expansion tank until it starts to come out
of the vent plugs.
IMPORTANT
Use the fluid specified or equivalent. Other fluids could cause system damage.
IMPORTANT
Monitor the level of fluid in the expansion tank so that you do not overfill it.
13. Tighten the vent plugs.
Maintenance: Hydraulic System Maintenance Page 5–25 3451-705A