1)
Optional accessories / Option depending on model
Original instruction
20
Maintenance plan
Weekly
As required
After the first 50 operating
hours
When service lamp lights
Water filters
●
Check and clean tank inlet fuel filter
●
Check and replace Internal fuel filter
●
Clean the fuel tank
●
Grease quick couplings nipples for hose,
gun and lance
●
Check the pump oil quality
●
Change the pump oil
- Contact dealer/service dpt. - Contact dealer/service dpt.
Other Faults
Indication lights
Cause
Remedy
Not ON
- Plug not connected to the electrical plug socket. - Put the plug into the electrical socket.
- Check fuse (see chapter Technical Data).
Pressure too low
- High pressure nozzle worn out.
- Pressure regulation set to low pressure or
VarioPress-lance
1)
set to low water volume
1)
.
- Replace nozzle.
- Turn the twist grip on safety control block clock-
wise (+) or set VarioPress- lance
1)
to higher
water volume (see chapter E10-11).
Machine is running with
pulsating pressure and makes
knocking noise
- Pump has drawn in air as the detergent tank is
empty
- Close detergent valve. Remove lance from gun.
Operate spray gun and let machine run until
air in pump is gone and the machine is running
normally again.
No detergent drawn in
- Detergent tank empty.
- Dirt in detergent tank.
- Suction valve at cleaning agent inlet soiled.
- Top up detergent tank.
- Clean detergent tank.
- Remove suction valve and clean or replace.
Burner soots up
- Fuel contamination.
- Burner sooted or adjustment incorrect.
- Contact dealer/service dpt.
Summary of Contents for MH 4M
Page 1: ...107144382 E 04 2017 MH 4M MH 5M MH 6P MH 7P Operating instructions ...
Page 8: ...8 B B5 B4 a A B4 b B B B A B6 ...
Page 9: ...9 B C B7 B9 B8 C1 a C1 b C B A C1 c ...
Page 10: ...10 C D E C2 D1 10 10 0 C 32 F 40 C 104 F D3 E1 D4 E2 D2 A E3 B C A C D5 ...
Page 14: ...14 F G F4 G1 C B C G2 F7 F5 F6 0 C 32 F ...
Page 15: ...15 H H2 H4 H3 H1 a H1 b A A A A B B B B C ...
Page 16: ...16 H H5 H6 A B C MIN C ...