Aussie Pumps MINE BOSS SCUD 400 Betriebsanleitung - Seite 13
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Jan 2019
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 TTL 1520 TTL 2120 (Scud 350, Scud 351)
WORK SMART ... STAY SAFE
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
A
B
UNLOADER
| Aussie Scud Mine Boss (Class A) ... Operator's Instruction Manual
Aussie Pumps
closed two or three times to ensure safety
valve doesn't blow off pressure.
6. If safety valve continues to trip contact your
nearest Aussie Eco-clean service centre.
SAFETY
VALVE
Kit No. Description
127
Oil Seal & Sight Glass Kit
123
Valve Kit
89
Seal Kit Minor
86
Seal Kit Major
37
Oil Seal Kit
67
Valve cap kit
C
D
Pieces
10
12
18
24
3
12
13