Hydraulic System Maintenance; Checking The Hydraulic Oil Level; Change The Hydraulic System Filter - Toro Titan Z4800 Operator's Manual

Hydraulic System
Maintenance
Checking the Hydraulic Oil
Level
Service Interval: Before each use or daily
Check expansion tank and if necessary add MOBIL 1
15W-50 synthetic motor oil to the FULL COLD line
Figure 36
1. Engine
Change the Hydraulic System
Filter
Service Interval: After the first 200 hours
Note: Use only MOBIL 1 15W-50 Synthetic motor oil.
1. Stop engine, wait for all moving parts to stop, and
allow engine to cool. Remove key and engage
parking brake.
2. Locate the two filters under the transmissions.
Remove filter guards.
3. Carefully clean area around filters. It is important
that no dirt or contamination enter hydraulic system.
4. Unscrew filters to remove and allow oil to drain
from drive system.
Important: Before reinstalling new filters,
apply a thin coat of oil on the surface of the
filters rubber seal.
Turn the filters clockwise until rubber seal contacts
the filter adapter then tighten the filter an additional
3/4 to 1 full turn.
2. Expansion tank
5. Remove the vent plug on each transmission and fill
through expansion reservoir, when oil comes out of
vent reinstall plug. Torque plugs to 180 in-lb (244
N-m). Continue to add oil until it reaches the FULL
COLD line on the expansion reservoir.
1. Oil filter
2. Vent plug
6. Raise the rear of machine up and support with jack
stands (or equivalent support) just high enough to
allow drive wheels to turn freely.
7. Start engine and move throttle control ahead to 1/2
throttle position. Disengage parking brake.
A. With the bypass valve open and the engine
running, slowly move the directional control in
both forward and reverse (5 or 6 times).
B. With the bypass valve closed and the engine
running, slowly move the directional control
in both forward and reverse directions (5 to 6
times). Check the oil level, and add oil as required
after stopping the engine.
C. It may be necessary to repeat steps and until all
the air is completely purged from the system.
When the transaxle operates at normal noise
levels and moves smoothly forward and reverse
at normal speeds, then the transaxle is considered
purged.
Do Not change hydraulic system oil (except for what
can be drained when changing filter), unless it is felt the
oil has been contaminated or been extremely hot.
Changing oil unnecessarily could damage hydraulic
system by introducing contaminates into the system.
36
Figure 37
3. Left rear tire