Aussie RAPTOR 12, Operator'S Instruction Manual

July 2012 

Raptor Electric Operator’s Manual 

11 

Australian Pump Industries 

MAINTENANCE, SERVICE AND SPARES 

Your Aussie Raptor has been designed to give you long and trouble free service.  If, however, having 
carefully followed the instructions in this booklet, you have a problem which cannot be resolved by referring 
to the Troubleshooting Guide below, or if you require spare parts or servicing, contact your local dealer or 
Australian Pump Industries on Telephone No.: 

(02) 8865 3500.

FAULT CAUSE REMEDY 

Pump running normally but 
pressure low on installation 

Pump sucking air 
 
Valves sticking, dirt in valves 
 
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 clean out if necessary 
Check water supply and air ingress 
at joints in suction line 
Check and replace  

Pressure low after period of normal 
use 

Nozzle worn 
Suction or delivery  
valves worn 
Suction or delivery valves 
blocked 
Unloader valve seat worn 
Worn piston packing 
Cracked pistons as a result of 
dry running 

Check and replace  
Check and replace  
 
Check and clean if necessary 
 
Check and replace if necessary 
Check and replace if necessary 
Replace pistons 

Pump noisy 

Air in suction 
 
Broken or weak suction or 
delivery valve spring 
Foreign matter in valves 
Worn bearings 
Excessive temperature of 
liquid  

C h e c k   w a t e r   s u p p l y   a n d 
connections on suction line 
Check and replace if necessary 
 
Check and clean if necessary 
Check and replace if necessary 
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 if necessary 

Water dripping from under pump 

Piston packing worn 
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  

TROUBLESHOOTING

GUIDE 

WARNING:  CHECK OIL LEVEL IN PUMP REGULARLY 

DO NOT OVERFILL