Maintenance And Service - Bosch AQT 33-10 Original Instructions Manual

OBJ_BUCH-1870-004.book Page 13 Monday, June 10, 2013 10:08 AM
Problem
Pressure pulsating
Pressure too low, but steady
Note: Several types of accessory will nor-
mally deliver a lower pressure
Motor starts up but with restricted or no
working pressure
The pressure washer starts irregularly by
itself
Water leaks from machine
No detergent taken in

Maintenance and Service

Maintenance
 Stop, remove plug from the power supply and discon-
nect from water supply.
Note: To ensure long and reliable service, carry out the follow-
ing maintenance regularly.
Regularly check for obvious defects such as loose fixings, and
worn or damaged components.
Check that covers and guards are undamaged and correctly
fitted. Carry out necessary maintenance or repairs before us-
ing.
If the machine should happen to fail despite the care taken in
manufacture and testing, repair should be carried out by an
authorised customer service agent for Bosch garden prod-
ucts.
In all correspondence and spare parts orders, please always
include the 10-digit article number given on the type plate of
the machine.
Bosch Power Tools
Possible Cause
Air in the inlet water supply hose/pump
Inadequate water supply
Water filter blocked
Water supply hoses squeezed
High pressure hose too long
Nozzle worn
Start/stop valve worn
No water supply
Water filter clogged up
Nozzle clogged up
Pump/power gun leaky
Leaking pump
Nozzle connected
Detergent too dense
High pressure hose extension being used. Fit original hose.
Deposits or restriction in detergent cir-
cuit
After use/Storage
Turn the main switch off and operate the trigger to drain the
water from the high pressure hose.
Clean the exterior of the machine thoroughly using a soft
brush or cloth. Do not use water, solvents or polishes. Re-
move all debris, especially from the ventilation slots.
End of season storage: Drain water out of pump running mo-
tor for a few seconds. Pull trigger to release all water.
Do not place other objects on top of the machine.
Store in a frost-free area.
Ensure cables are not trapped when storing. Do not kink high
pressure hose.
English | 13
Corrective Action
Allow pressure washer to run with open
spray handle and nozzle at low pressure
until regular working pressure is obtained
Check that the water supply corresponds
to specifications. The minimum specifica-
tion for the water supply hose is 1/2" or
13 mm diameter
Clean water filter
Straighten out kinked water supply hoses
Remove high pressure extension hose.
Retry (extension hose max. 7 m)
Change the nozzle
Activate trigger five times in quick suc-
cession
Connect water supply
Clean the water filter
Clean nozzle
Contact your Bosch Service Centre
A slight water leak is permissible; in case
of excessive leak, contact Service centre.
Remove nozzle to give a low pressure flow
Dilute with water
Flush with clean water and eliminate any
restrictions. If the problem persists, con-
tact your Bosch Service Centre.
F 016 L70 993 | (10.6.13)