Changing the Hydraulic
System Oil and Filters
Service Interval:
After the first 50 hours
Every 400 hours
Important:
The bleeding process is repeated until the
oil remains at the Full Cold line in the reservoir after
purging.
Failure to properly perform this procedure
can result in irreparable damage to the transaxle drive
system.
Note:
The filter and oil are changed at the same time.
Do
Not
reuse oil. Once the new filter is installed and oil is added
any air in the system must be purged.
Removing Hydraulic System Filters
1.
Stop engine, wait for all moving parts to stop, and
allow engine to cool. Remove the key and engage the
parking brake.
2.
Raise the rear of machine up and support with jack
stands (or equivalent support) just high enough to
allow drive wheels to turn freely.
Figure 43
1.
Jacking points
3.
Locate the filter and filter guards on each transaxle
drive system (
). Remove three screws securing
the filter guard and guard.
Figure 44
Right side shown
1.
Transaxle drive
4.
Screws
2.
Oil filter
5.
Vent plug
3.
Filter guard
4.
Carefully clean area around filters. It is important that
no dirt or contamination enter hydraulic system.
5.
Place a container below the filter to catch the oil that
drains when the filter and vent plugs are removed.
6.
Locate and remove the vent plug on each transmission
7.
Unscrew the filter to remove and allow oil to drain
from drive system.
Repeat this procedure for both filters.
37