Hydraulic System Maintenance; Changing The Hydraulic System Oil And Filter - Toro 08887 Operator's Manual

WARNING
The engine must be running during adjustment of
the engine governor speed control. Contact with
moving parts or hot surfaces may cause personal
injury.
• Ensure traction pedal is in neutral and engage
the parking brake before performing this
procedure.
• Keep hands, feet, clothing, and other body parts
away from any rotating parts, the muffler, and
other hot surfaces.
Note: To adjust the low idle, use all the following steps.
If only the high idle is to be adjusted, proceed directly
to step 5.
1. Start the engine and let it run at half throttle for
approximately five minutes to warm up.
2. Move the throttle control to the Slow setting. Adjust
the idle stop screw counterclockwise until it no
longer contacts the throttle lever.
3. Bend the governed idle spring anchor tang
(Figure 28) to attain an idle speed of 1750 ±50 RPM.
Check the speed with a tachometer.
Figure 28
Shown with Carb Adapter Removed
1. Governed idle spring
anchor tag
4. Adjust the idle stop screw until the idle speed is
increased 25 to 50 RPM over the idle speed set in
step 3. Final idle speed must be 1750± 100 RPM.
5. Move the throttle control to the Fast position. Bend
the high speed spring anchor tang (Figure 28) to
attain a high speed of 3150 ±50 RPM.
2. High speed spring anchor
tag
Hydraulic System
Maintenance
Changing the Hydraulic
System Oil and Filter
Service Interval: After the first 8 hours
Every 400 hours
The hydraulic system filter must be changed initially,
after the first 8 hours of operation, and thereafter every
400 hours of operation or yearly, whichever occurs
first. Use a genuine Toro oil filter for replacement.
The hydraulic oil must be changed every 400 hours of
operation or yearly, whichever occurs first.
1. Park the machine on a level surface and turn the
engine off.
2. Pivot the seat upward.
3. Disconnect the tube from the bottom fitting of the
reservoir and let the oil flow into a drain pan. Install
and tighten the tube when the oil stops draining.
4. Clean the area around the hydraulic oil filter
(Figure 29). Remove the filter from the bottom of
the filter housing and allow the oil to flow into a
drain pan. Use a bottom-type filter wrench. Dispose
of the oil filter properly
1. Hydraulic filter
5. Apply a film of oil on the filter gasket. Install the
filter by hand until the gasket contacts the mounting
head; then tighten the filter an additional 3/4 turn.
6. Fill the reservoir to the proper level; refer to
Checking the Hydraulic System.
7. Place all of the controls in the neutral or disengaged
position and start the engine. Run the engine at the
lowest possible RPM to purge the system of air.
30
Figure 29