Storage & Maintenance - Mi-T-M THE WORK PRO WP Serie Mode D'emploi

STORAGE & MAINTENANCE
ENGINE: The engine instructions that accompany your unit detail specific
procedures for maintenance of the engine. Following the engine manufac-
turer's recommendations will extend engine work life.
PUMP: The pump oil must be changed after the first 25 hours of operation
on all units excluding the WP-2000. (The WP-2000 has a sealed crankcase
and the oil cannot be changed.) Once the initial oil change has been com-
pleted, it is recommended the oil be changed every 3 months or 250 hour
intervals. If oil appears dirty or milky, changes may be required at a greater
frequency. Add pump oil and fill only to the center of the sight glass (Refer
to the parts listing for the correct pump oil). DO NOT OVERFILL!
NOZZLES: Water flow through the spray nozzle will erode the orifice, mak-
ing it larger, resulting in a pressure loss. Nozzles should be replaced when-
ever pressure is less than 85% of the maximum. The frequency of replace-
ment will depend upon such variables as mineral content in the water and
number of hours the nozzle is used.
QUICK COUPLERS: There is an o-ring seal inside the female quick coupler.
This o-ring will deteriorate or, if the unit is allowed to pump without the high
pressure hose or nozzle attached, the o-ring may be blown out occasionally.
Simply insert a replacement o-ring to correct the leak. (Additional o-rings
can be purchased from your dealer.)
16 WP-Cold Water Direct Driven Operator's Manual