Storage & Maintenance; Specific Maintenance - Mi-T-M CW-4004-5MV0 Operator's Manual

STORAGE & MAINTENANCE

SPECIFIC MAINTENANCE:

ENGINE: The engine instructions that accompany your unit detail specific
procedures for maintenance of the engine. Following the engine manufactur-
er's recommendations will extend engine work life.
PUMP: Change the pump oil after the first 25 hours of operation. After
initial change, every 3 months or 250 hour intervals are recommended. If oil
appears dirty or milky, changes may be required in greater frequency. Use
Mi-T-M pump oil (#AW-4085-0016) and fill only to the dot on the oil sight
glass. DO NOT overfill.
WATER STRAINER: Periodic cleaning of the water strainer will help prevent
pump problems. As a strainer becomes obstructed, it restricts proper flow
of water to the pump. This can result in cavitations which will cause prema-
ture failure of pump packings. Unscrew the water strainer cap, remove the
screen and clean or replace.
NOZZLES: Water flow through the quick-connect spray nozzle will erode
the orifice, making it larger, resulting in a pressure loss. Nozzles should be
replaced whenever pressure is less than 85% of the maximum. The frequen-
cy of replacement 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 attached, it may be blown out occasionally. Simply insert a
replacement o-ring to correct the leak. (Additional o-rings can be purchased
from your dealer.)
BELT TENSION ADJUSTMENT: To maintain peak performance of your
pressure washer, it may be necessary to adjust the belt tension on occasion.
Follow the procedure outlined below.
1. Remove the belt guard and loosen the two nuts on each side of the pump
(Reference A). There are a total of 4 nuts.
2. Turn the cap screw (Reference B) clockwise until a 1/2 inch belt deflection
is noticed between the pulleys.
3. Tighten the side nuts (Reference A).
4. Put a straight edge across both pulleys. If necessary, loosen one set of
pulley screws and adjust in or out to properly align. Tighten the pulley
screws and check the tension again.
5. Replace the beltguard and tighten the fasteners securely.
Mi-T-M CW-GASOLINE / DIESEL Operator's Manual
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