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Accumulator Replacement (Fig. 43)
1. Stop the engine, engage the parking brake, open the
hood and disconnect the engine spark plug wires.
ac-
in a
be
j
Charged accumulators contain high pressure
nitrogen. Nitrogen is the only gas to use for
accumulator charging. Installing IMPROPER
gases in an accumulator can cause an EX-
PLOSION AND DEATH. Charging requires
special tools and precautions. Charge
cumulators well ventilated area. It is
recommended that the accumulator
checked and charged by an Authorized TORO
Distributor.
Wear eye protection. Keep hands and face
away from gas valve.
Slowly open high pressure water bleed valve
before servicing any component connected
to high pressure water system. Opening the
high pressure bleed valve allows any trapped
water to escape from the system and also
allows accumulator piston to move to bottom
of accumulator cylinder. Failure to open bleed
valve before servicing high pressure water
components can cause personal in ury, DIS-
MEMBERMENT OR DEATH.
Charged accumulators cannot be shipped via
air freight.
DANGER
2. Slowly open the high pressure bleed valve allowing
any pressurized water to escape
3. Remove splash shield from manifold to get access to
capscrews securing accumulator. Use a socket wrench
with long extension to remove four (4) capscrews
(Item 21) securing accumulator (Item 14) to valve hous-
ing (Item 17). Remove the accumulator. Discard O-ring
(Item 15).
4. Install new O-ring seal (Item 15) into groove on top of
valve housing. Carefully install accumulator onto top of
valve housing. Make sure decals (Items 12, 13) are
facing forward and securely attached to accumulator.
6. Install four (4) NEW special bolts (Item 20) through
valve body and into base of accumulator. Tighten to a
torque of 40 ft-lb.
7. Charge accumulator with dry Nitrogen (see TEST
NO. 3: Accumulator Pre-Charge Pressure and Adding
Dry Nitrogen in the Testing section).
Repairs Page 6 - 32 HydroJect
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