22
CHECK HYDRAULIC SYSTEM
Check Hydraulic Oil Level
See Figure 17.
1.
Place unit in service position. See
Service
Position
on page 20.
2.
Check oil level in expansion tanks. Oil
should reach the cold fill indicator mark.
NOTICE: Engine should be cold when checking
initial oil level.
Figure 17
Add Hydraulic Oil
1.
Place unit in service position. See
Service
Position
on page 20.
2.
Remove hydraulic oil expansion tank caps.
3.
Fill expansion tanks with 15W-50 synthetic
motor oil (or equivalent) until oil reaches the
cold fill indicator mark (see
Figure 17
).
4.
Reinstall expansion tank caps.
Change Hydraulic Oil and Filter
1.
Operate unit for a few minutes to warm
hydraulic oil.
2.
Stop engine, remove key and wait for all
moving parts to stop and for hot parts to
cool.
3.
Position container under oil filter to catch
used oil.
4.
Remove hardware retaining transaxle
skid plate and remove skid plate (see
Figure 31
on page 28).
5.
Remove filter cover and O-ring from
transaxle. Retain cover; discard O-ring
(see
Figure 18)
6.
After oil has drained, remove oil filter and
discard.
7.
Wipe filter-mounting surface clean.
8.
Lubricate rubber gasket on new oil filter
with clean hydraulic oil.
9.
Spin filter onto filter housing until it makes
contact, and then turn filter 3/4 turn to
tighten.
10.
Reinstall filter cover.
11.
Remove the vent/fill plug and add 15W-50
synthetic motor oil until oil appears at the
bottom of the fill port [4475 mL (151 fl. oz)
per transaxle].
12.
Reinstall the vent/fill plug and torque to
22.6 N•m (16.7 lb-ft).
13.
Add hydraulic oil to expansion tank until
oil reaches cold fill indicator mark. (
See Fig. 17.)
14.
Repeat steps 3 – 13 for other transaxle.
15.
Purge hydraulic system.
Figure 18
Purge Hydraulic System
WARNING:
Avoid Injury
This adjustment requires operating the
engine. Use extreme care to avoid contact
with moving parts and hot surfaces. Be sure
rear of unit is well supported and secure
before starting engine.
Purge air from hydraulic system after draining oil or
changing the filter.
1.
Park unit facing a wall, or chock wheels.
2.
Support unit so drive wheels are off the
ground.
3.
Release parking brake.
4.
Bypass transaxles. See
Move Unit Manually
on page 18.
