Hydraulic System - Toro 22300 Operator's Manual

Maintenance

Hydraulic System

Replacing the Hydraulic Filter
Change the hydraulic filter:
After the first 8 operating hours.
After every 400 operating hours.
1. Position machine on a level surface, lower the
loader arms, stop the engine, and remove key
from ignition switch.
IMPORTANT: Do not substitute automotive
oil filter or severe hydraulic system damage
may result.
2. Place drain pan under filter, remove the old filter
and wipe the filter adapter gasket surface clean.
3. Apply a thin coat hydro fluid to the rubber
gasket on the replacement filter (Fig. 15).
4. Install replacement hydraulic filter onto the filter
adapter. Tighten clockwise until the rubber
gasket contacts the filter adapter, then tighten the
filter an additional 1/2 turn (Fig. 15).
5. Clean up any spilled fluid.
6. Start engine and let run for about two minutes to
purge air from the system. Stop the engine and
check for leaks.
7. Check fluid level in hydraulic tank and add to
raise level to mark on dipstick. DO NOT OVER
FILL.
26
1
Figure 15
1. Hydraulic filter
2. Gasket
Check Hydraulic Lines
After every 100 operating hours, check hydraulic
lines and hoses for leaks, loose fittings, kinked lines,
loose mounting supports, wear, weather and chemical
deterioration. Replace all moving hydraulic hoses
every 1500 hours or 2 years, which ever come first.
Make necessary repairs before operating.
POTENTIAL HAZARD
Hydraulic fluid escaping under pressure
can penetrate skin and cause injury.
WHAT CAN HAPPEN
Fluid accidentally injected into the skin
must be surgically removed within a few
hours by a doctor familiar with this form of
injury or gangrene may result.
HOW TO AVOID THE HAZARD
Keep body and hands away from pin hole
leaks or nozzles that eject high pressure
hydraulic fluid.
Use cardboard or paper to find hydraulic
leaks, never use your hands.
3
2
m–1256
3. Adapter