SM_MH 3M_4M Ver.1.2_May 2016
Preface
This service manual contains detailed description of the main repair work on the hot HPW
MH 3M & 4M.
Repair work requires a suitable testing workplace with the necessary water and power supply.
If operating errors are evident, refer the customer to the operating instructions.
A fault in the cleaner can have several causes as described in the section on troubleshooting.
Refer to the illustrated spare parts lists during repairs. They show the assembly position and the
sequence in which the individual components should be assembled.
See ”Technical Service Bulletin” (TSB) sheets. They include information on technical
modifications that have been made after this repair manual was printed.
”Technical Service Bulletin” sheets are also valid as a supplement to the spare parts list until
publication of a new edition.
Repair manuals and ” Technical Service Bulletin” sheets should be available at the site
where repairs are carried out.
It is not permitted to give them to third parties.
Use original Nilfisk spare parts only.