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 the oil specified. Other fluids could
damage the hydraulic system.
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 72
1. Expansion reservoir
® HYPR-OIL ™ 500 hydraulic oil
G017452
1
2
G017451
2. FULL COLD line
Changing the
Hydraulic-System Filter
and Oil
Change the filter and oil at the same time. Do not use the oil
again. Purge any air in the system after you install the new
filter and add oil.
Repeat the bleeding process 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 the engine, wait for all moving parts to stop, allow
the engine to cool, remove the key, and engage the
parking brake.
2. Locate the filter and guards on each transaxle-drive
system (Figure
®
3. Remove the 3 screws securing the filter guard and
guard (Figure
G017444
1. Transaxle drive
2. Oil filter
3. Filter guard
4. Carefully clean the area around the filters.
Important: Do not allow dirt to enter the
hydraulic system, or contamination may occur.
5. Place a drain pan 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 it, and allow the oil to
drain from drive system.
8. Repeat this procedure for both filters.
51
73).
73).
5
3
4
Figure 73
Right side shown
4. Screws
5. Vent plug
1
2