Maintenance; Oil Level; Oil Change; Water Filter - Nilfisk-Advance Gerni 642 Betriebsanleitung

To obtain the optimum return and the longest possible life for
your high pressure cleaner, it is important to maintain the
machine. We recommend that you follow the following directions
and refer to the check list on the next page.

Oil level

The oil level of the pump should be checked daily. Only read the
oil level when the machine is switched off and placed on an even
surface. The oil must be visible in the oil glass. Refill by remove
the oil glass (2.17) whit a spanner

Oil change

The pump oil should be changed after a maximum of 300 work-
ing hours and at least once a year. If there is water in the pump
oil, the contaminated oil should be changed and new oil added
(oil type: See technical data).

Water filter

Clean the water filter (2.4) as needed. Disconnect the water inlet
hose and remove the water filter.

Turbo Laser

Clean the filter in the Turbo Laser lance (2.8) regularly. The filter
is mounted in the inlet opening at the throttle control to prevent
particles such as calcium and sand from entering the Turbo
Laser where they may cause increased wear, leaks or in serious
cases operating malfunctions.
It may be necessary to change the filter. If so, put a screwdriver
or similar tool through the filter and pull it out. Mount the new filter
with an O-ring and press it into the opening of the Turbo Laser
lance. Make sure that the filter is placed with the largest contact
face towards the Turbo Laser head.
When inspecting or replacing parts in the Turbo Laser, spray the
metal parts with "Pronto Universal", "WD 40", "Servisol",
"Caramba" or similar products that are able to:
a. Counteract moisture
b. Protect against corrosion
c. Lubricate and clean
We also recommend the above mentioned treatment, if the
machine will not be operated for a longer period of time.

MAINTENANCE

Frost protection

The best frost protection is to place your high pressure cleaner in
a frost-free environment. If this is not possible, the high pressure
cleaner must be frost-protected as follows:
Dip the water inlet hose in a container holding 5 litres of
antifreeze/water mix. Start the machine by turning the switch
(2.22) to pos. "1", activate the pistol and let the machine run with
the pressure regulation handle in the open position until anti-
freeze comes out of the Turbo Laser nozzle (2.8). Release the
pistol trigger a couple of times to frost-protect the by-pass and
safety valves. The antifreeze can be collected and used again.

Cleaning

Always keep your high pressure cleaner clean. This increases the
life and function of the individual parts considerably.

Disassembly/destruction

All replaced parts such as water filter, fine sand filter, Turbo Laser
filter as well as contaminated oil and antifreeze must be handed
in to the local approved authority/institution for deposit/destruc-
tion.
When the high pressure cleaner is no longer to be used, the
detergent as well as pump and stator oil must be drained off and
delivered in accordance with the above mentioned instructions.
The high pressure cleaner must likewise be handed in to the
local, approved institution for destruction.
Any replaced parts from service visits may be given to the ser-
vice personnel who will deliver them to the proper authority.
31