Operator's Manual

36
HYDRAULIC SYSTEM MAINTENANCE
CHANGING HYDRAULIC FLUID
Change hydraulic fluid after every 400 operating
hours, in normal conditions. If fluid becomes
contaminated, contact your local TORO distributor
because the system must be flushed.
Contaminated fluid looks milky or black when
compared to clean oil.
1. Start engine, park machine on a level surface,
set the parking brake, and shut engine off. Block
the two rear wheels.
2. Clean area around hydraulic oil filter and
remove filter.
3. Clean area around one hydraulic line on
bottom of tank. Loosen and remove line from tank
fitting and allow oil to flow into drain pan.
4. Install new filter; refer to steps 1-2 in
"Replacing Hydraulic Oil Filter", for proper
procedures.
5. Reinstall hydraulic line on tank fitting and
tighten securely.
6. Fill reservoir with approximately 12 gallons of
hydraulic fluid. Refer to "Checking Hydraulic
Fluid". (page 18)
IMPORTANT! Use only hydraulic fluids
specified. Other fluids could cause system
damage.
7. Install reservoir cap. Start and run engine at
idle speed for about two minutes and turn the
steering wheel lock to purge air trapped in the
system. Turn the engine off.
8. Check level of fluid and add enough to raise
level to specified level. DO NOT OVERFILL.
REPLACING HYDRAULIC OIL FILTER
IMPORTANT! KEEPING THE HYDRAULIC
SYSTEM CLEAN IS ESSENTIAL. SERVICING
THE HYDRAULIC FILTER IS CRITICAL TO THE
LIFE OF THE HYDRAULIC SYSTEM.
The hydraulic filter keeps the hydraulic system
relatively free of contaminants and must be
serviced at regular intervals. Initially, change filter
after first ten hours of engine operation, and
thereafter every 200 hours of operation or
yearly, whichever comes first. Use TORO oil
filter, Part No. 86-3010, as a replacement.
1. Position vehicle on a level surface, stop
vehicle, engage parking brake (lock), turn engine
off, and remove key from ignition switch.
Pin hole leaks can eject high pressure
hydraulic fluid. Hydraulic fluid escaping
under pressure can penetrate skin and
cause injury.
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.
Wear gloves and use cardboard or
paper to find hydraulic leaks.
CAUTION
2. Clean area around filter mounting area. Place
drain pan under filter and remove filter.
3. Lubricate new filter gasket, and fill the filter
with recommended hydraulic fluid.
4. Make sure filter mounting area is clean. Screw
filter on until gasket contacts mounting plate. Then
tighten filter 1/2 to 2/3 turn.
5. Start engine and let run for about two minutes
to purge air from the system. Stop the engine,
check the hydraulic oil level, and check for leaks.
CHECKING HYDRAULIC LINES AND
HOSES
Inspect hydraulic lines and hoses daily for leaks,
kinked lines, loose mounting supports, wear, loose
fittings, weather deterioration, and chemical
deterioration. Make all necessary repairs before
operating.