Aussie Mobi-blaster BB 100, Инструкция оператора

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Aussie Mobi-blaster … Operator’s Instruction Manual
9
Aussie Pumps
Sept 2016
FAULT CAUSE REMEDY
Pump running normally but
pressure low on installation
Pump sucking air
Valves sticking
Unloader valve seat faulty
Nozzle incorrectly sized
Worn piston packing Check water supply and possibility of air
ingress.
Check and clean or replace if necessary
Check and replace
Check and replace
Check and replace
Fluctuating Pressure
Valves worn
Valves blocked
Pump sucking air
Worn piston packing Check and replace
Check and replace
Check water supply and air ingress at joints in
suction line
Check and replace
Pressure low after period of
normal use
Nozzle worn
Check valves worn
Check valves blocked
Unloader valve seat worn
Worn piston packing
Pistons cracked as a result of dry running Check and replace
Check and replace
Check and clean
Check and replace
Check and replace
Replace pistons
Pump Noisy
Air in suction
Broken or weak suction or delivery valve
spring
Foreign matter in valves
Worn bearing
Excessive temperature of liquid Check water supply and connections on suction
line
Check and replace
Check and clean
Check and replace
Reduce temperature
Presence of water in oil
Oil seal worn
High humidity in air
Piston packing worn Check and replace
Check and change oil twice as often
Check and replace
Water dripping below pump
Piston packing worn
O.R plunger retainer worn Check and replace
Check and replace
Oil Dripping
Travel plug in use on pump
Oil seal worn Replace with breather plug
Check and replace if necessary
Unloader switches repeatedly
when gun is off
Leaking gun and/or pressure pipe.
Leaky sleeve
Worn out kick-back valve body
Leaky seals Renew gun, seal pressure pipe
Renew sleeve
Check and renew as necessary kick-back valve
plate and seat
Renew seals
Leaky piston rod Defective O-Ring/Support Ring
Renew piston rod seals and examine surfaces
in guide case
Leaky by-pass at nominal pressure
Nozzle too small, too much water.
Worn out by-pass valves Install larger nozzle
Examine and renew as necessary
Pressure gauge shows high
pressure fluctuations when
shutting off gun
Valve set too high above operating pressure
Dirty valve
Adjust the unloader at the operating pressure.
Clean valve (removing lime deposits etc).
Grease parts before installing.
Pressure in supply line when
running on by-pass
Dirty or worn low pressure valves Remove & clean or replace low pressure valves
Engine will not start
Out of fuel
Engine defect Fill tank with petrol/diesel
Return to engine service agent
TROUBLE SHOOTING GUIDE
For engine troubleshooting refer to the engine manufacturer’s handbook.