Service And Repairs; General Precautions For Removing And Installing Hydraulic System Components - Toro Workman HDX Auto Service Manual

Service and Repairs

General Precautions for Removing and Installing Hydraulic System Components

Before Repair or Replacement of Components
1. Before removing any parts from the hydraulic sys-
tem, park vehicle on a level surface, engage parking
brake and stop engine. Remove key from the ignition
switch.
2. Clean vehicle before disconnecting, removing or dis-
assembling any hydraulic components. Make sure hy-
draulic components, hydraulic hose connections and
hydraulic fittings are cleaned thoroughly. Always keep in
mind the need for cleanliness when working on hydraulic
equipment.
CAUTION
Before performing any service or repair on hy-
draulic system components, relieve system pres-
sure to avoid injury from pressurized hydraulic
oil. Stop the engine, remove key from the ignition
switch, rotate the steering wheel in both direc-
tions, lower or support the bed and operate other
hydraulic accessories.
3. Put caps or plugs on any hydraulic lines, hydraulic fit-
tings and components left open or exposed to prevent
hydraulic system contamination.
4. Put labels on disconnected hydraulic lines and hoses
for proper installation after repairs are completed.
5. Note the position of hydraulic fittings (especially el-
bow fittings) on hydraulic components before removal.
Mark parts if necessary to make sure they will be aligned
properly when reinstalling hydraulic hoses and tubes.
Hydraulic System
After Repair or Replacement of Components
1. Check oil level in the hydraulic reservoir and add cor-
rect oil if necessary. Drain and refill reservoir and change
oil filter if component failure was severe or system is con-
taminated.
2. Lubricate O−rings and seals with clean hydraulic oil
before installing hydraulic components.
3. Make sure caps or plugs are removed from the hy-
draulic lines, hydraulic fittings and components before
reconnecting.
4. Use proper tightening methods when installing hy-
draulic hoses and fittings (see Hydraulic Hose and Tube
Installation and Hydraulic Fitting Installation in the Gen-
eral Information section of this chapter).
5. After disconnecting or replacing any hydraulic com-
ponents, operate vehicle functions slowly until air is out
of system.
6. Check for hydraulic oil leaks. Shut off engine and cor-
rect leaks if necessary. Check oil level in reservoir and
add correct oil if necessary.
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