Aussie Scud 350 Manuel d'instruction de l'opérateur - Page 11

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March 2018

Resetting the Safety Valve

The safety valve prevents damage to the pump

seals and valves caused by a pressure spike.

The safety valve should only be reset after

checks to ensure the unloader valve is working

correctly. If in doubt contact, your nearest

Aussie Eco-clean service centre.

The following steps should be taken to reset the

safety valve, with the unit running.

1. Unscrew the lock nut (C) on the safety valve

and the adjusting screw (D), should be

screwed in all the way.

2. Using an allen key, loosen the lock nut (B) on

the unloader and wind the unloader knob (A)

in gradually until the required pressure is

obtained whilst the trigger is pulled and water

is running through the pump. Do not exceed

the maximum rated pressure of the pump.

3. The lock nut (B) should then be wound down

until it grounds out at the bottom (do not over

tighten as this will further adjust the pressure)

and locked with use of the allen key. Paint

mark across the nut and knob to identify any

tampering with the setting.

4. With the pump running at the required

PUMP PARTS WBL1114 (Scud 100)

pressure, the adjusting screw (D) on the safety

valve should be wound out until there is a

slight drip. Screw it in one quarter of a turn, or

until the drip stops, this will set the safety

valve 10% over the required pressure. The lock

nut (C) should then be locked off. Paint mark

to identify any tampering.

5. Repeat running with the trigger open and then

UNLOADER

Aussie Scud & Ultra ... Operator's Instruction Manual

6. If safety valve continues to trip contact your

Aussie Pumps

closed two or three times to ensure safety

valve doesn't blow off pressure.

nearest Aussie Eco-clean service centre.

SAFETY

VALVE

Kit No.

Description

Seal Kit Minor

Oil Seal Kit

Seal Kit Major

Full Oil Seal Kit

141

Valve Kit

166

Valve Cap Kit

Pieces