7
CHECKS TO BE PERFORMED BY AUTHORIZED SERVICE PERSON/AGENT
Checks and interval times at which checks should carried out and performed by an authorised service person/agent are
summarised below. It is essential that such checks and repairs be carried out by an authorised service person/agent as they have
the necessary experience and training required.
SUMMARY OF CHECKS TO BE CARRIED OUT BY THE USER
SUMMARY OF CHECKS TO BE CARRIED OUT BY AN AUTHORIZED
SERVICE PERSON/AGENT
Power cable/water connections/ hp
hose/performance
Each use
Engine
See Booklet
Engine
See Booklet
Check and if necessary replace pump
seals
Each 750 hours
Nozzle clean and inspect
Each 50 hours
Replace High pressure nozzle
Each 200 hours
Water and Detergent lines
Each 50 hours
Check Settings of all Hydraulic line
safety mechanisms
Once per year or every
500 hours whichever
comes first
Filters
Each 100 hours
Pump oil first change
After 50 hours
Pump oil change first / after first
Each 200 hours
Others checks
See Above
NOTE:
1)
Time indication for checks and replacement listed above are for units subject to normal operating conditions. Should
unit be subject to abnormal conditions ( ie. heavy duty use, dirty water or fuel, extreme temperatures or climatic
conditions etc.) times should be reduced accordingly
2)
Should unit be subject to very limited use, all checks and if necessary replacements should be carried out at least
once per year.
TROUBLESHOOTING
FAULT CAUSE
REMEDY
Pump Sucking air
Check that hoses/ fitting on inlet side of pump are airtight.
Nozzle is blocked
Check and clean nozzle
The pump is running normally but pressure
does not achieve rated values
Water filter dirty
Check and clean water filter
Pump Sucking Air
Check that hoses/ fitting on inlet side of pump are airtight.
Fluctuating Pressure
Water filter dirty
Check and clean water filter
Pressure drops after a period of normal use
Contact authorised serve person/agent
Pump Sucking air
Check that hoses/fitting on inlet side of pump are airtight.
Pump is noisy
Water inlet is too hot
Reduce water inlet temperature below 50
0
C
Presence of water in pump oil
Contact authorised service person/agent
Water dripping from under pump
Contact authorised service person/agent
Oil dripping from under pump
Contact authorised service person/agent
Presence of water in gearbox oil
Contact authorised service person/agent
Oil dripping from under gearbox
Contact authorised service person/agent
Engine does not start/operate correctly
Refer to engine instruction book Contact authorised service person/agent
NOTE: If the fault cannot be identified or corrected using the above list (or in the remedy column the words “contact
Authorised service person/agent” appear) stop using the machine immediately and contact an authorised service person
/agent to rectify the fault.
HYDRAULIC DIAGRAMS
D
G Handpiece trigger
S2 Detergent tank
F Filter
Aq Water inlet
M Motor
P Pump
V Bypass valve
D Detergent tap
U Nozzle
Aq
M
F
S2
P
V
Cold Water Units Without Break Tank.
F
G
U
D
D Detergent tap
G Handpiece trigger
S2 Detergent tank
F Filter
S1 Break tank
Aq Water inlet
M Motor
P Pump
V Bypass valve
U Nozzle
Aq
S1
N
M
F
S2
P
V
Cold Water Units Fitted With Break Tank.
F
G
U