Hydraulic System Maintenance; Servicing The Hydraulic System; Changing The Hydraulic System Filter And Oil - Toro 74142TE Operator's Manual

Hydraulic System
Maintenance
Servicing the Hydraulic
System
Hydraulic Oil Type: Toro
or Mobil ® 1 15W-50.
Important: Use oil specified. Other fluids could cause
system damage.
Checking the Hydraulic Oil Level
Service Interval: Every 25 hours
1. Allow the hydraulic oil to cool down. Check the oil
level when the oil is cold.
2. Check expansion reservoir and if necessary add Toro
HYPR-OIL ™ 500 hydraulic oil to the FULL COLD
line.
Figure 70
1. Expansion reservoir
® HYPR-OIL ™ 500 hydraulic oil
G017452
1
2
G017451
2. FULL COLD line
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
filter guard and guard.
®
G017444
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.
7. Repeat this procedure for both filters.
48
71). Remove three screws securing the
5
3
4
Figure 71
Right side shown
4. Screws
5. Vent plug
1
2