Changing The Hydraulic System Filter And Oil - Toro Z Master Commercial 2000 74141TE Operator's Manual

Changing the Hydraulic
System Filter and Oil
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.
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.
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. Locate the filter and guards on each transaxle drive
system (Figure 66). Remove three screws securing the
filter guard and guard.
5
3
4
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Figure 66
Right side shown
1. Transaxle drive
2. Oil filter
3. Filter guard
3. Carefully clean area around filters. It is important that
no dirt or contamination enter hydraulic system.
4. Place a container below the filter to catch the oil that
drains when the filter and vent plugs are removed.
5. Locate and remove the vent plug on each transmission
6. Unscrew the filter to remove and allow oil to drain
from drive system.
Repeat this procedure for both filters.
Installing the Hydraulic System Filters
Service Interval: After the first 50 hours
Every 400 hours
1
2
4. Screws
5. Vent plug
1
3
5
1. Apply a thin coat of oil on the surface of the rubber
seal of each filter.
2. Turn the filter clockwise until rubber seal contacts the
filter adapter then tighten the filter an additional 3/4 to
1 full turn. Repeat for the other filter
3. Install the filter guards over each filter as previously
removed. Use the three screws to secure the filter
guards.
4. Verify the vent plugs are removed before adding the oil.
5. Slowly pour the specified oil through expansion
reservoir until oil comes out of one of the vent plug
holes. Stop and install that vent plug. Torque the plug
to 180 in-lb (20.3 N-m).
6. Continue to add oil through the expansion reservoir
until oil comes out of the remaining vent plug hole on
the second transmission. Stop and install that vent
plug. Torque the plug to 180 in-lb (20.3 N-m).
7. Continue to add oil through the expansion reservoir
until it reaches the FULL COLD line on the expansion
reservoir. Proceed to the Bleeding the Hydraulic
System section.
Important: Failure to perform the Bleeding
the Hydraulic System procedure after changing
hydraulic filters and oil can result in irreparable
damage to the transaxle drive system.
45
2
4
6
3/4
Figure 67
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