Aussie Pumps BB100 Hire Series Bedienings- en onderhoudshandleiding - Pagina 12

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Aussie Pumps

UNLOADER SETTING .... ENGINE POWERED AUSSIE BLASTER

The following steps should be taken to set the water pressures, with the unit running.

1. Before setting the pressure, the lock nut (C) on the safety valve should be undone and the adjusting

bolt (D), should be screwed in all the way.

2. Using an allen key, loosen the lock nut on the unloader (B) and wind the unloader knob (A) in

gradually until the required pressure is obtained (4,000 psi for a BB400, 2,000 psi for a BB100

engine drive) whilst the trigger is pulled and water is running through the pump. 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.

3. With the pump running at the required pressure, the adjusting bolt (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.

4. Repeat running with the trigger open and then closed two or three times to ensure safety valve

doesn't blow off pressure.

Aussie BB Hire Series ... Operation & Maintenance Manual

June 2016