11.3 TROUBLESHOOTING GUIDE (continued)
Problem
Possible Cause
Remedy
Insufficient flow or no flow.
1. Dirty liquid and/or liquid
containing other abrasive
substances may reduce
the pumping capacity.
1. Clean the filter. If needed,
return the product to
Draper Tools or an
authorised service agent
for repair
2. Hose/Pipe/Filter clogged.
2. Unblock the hose/ Clean
the filter.
3. Hose/piping system
damaged.
3. Contact your nearest
Draper Tools stockist for
replacement hose.
4. There is air in the pump
chamber.
4. ‘Prime’ the pump,
following the procedure
shown in section 9.1 on
page15.
5. The joints of the suction
hose are not sealed.
5. Replace joints and make
sure the connections are
securely sealed.
6. Incorrect saw blade
selection.
6. Seek advice on suitable
saw blades.
The pump only runs for a
short period of time.
1. The impeller may be
damaged due to a
blockage within the pump,
causing it to overheat and
cut out.
1. Check the pump for
visible signs of a
blockage. If the blockage
is easily cleared, allow
pump to cool and then
re-start. If problem
persists return the pump
to your local Draper Tools
service agent, or Draper
Tools for fault finding/
repair.
2. Intervention of the thermal
overload switch.
2. Make sure the fluid being
pumped is not too dense,
causing the motor to
overheat.
3. Make sure the
temperature of the water
is not too high.
4. Make sure there is no
solid body obstructing the
impeller.
– 17 –
11. MAINTENANCE AND TROUBLESHOOTING