Graco 2525, Инструкция по эксплуатации

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14
STORAGE & MAINTENANCE
INSTRUCTIONS
Engine
The engine instructions that accompany your unit detail
specific procedures for maintenance of the engine. Fol -
lowing the engine manufacturer’s recommendations will
extend engine work life.
Pump
The pump oil must be changed after the first 25 hours
of operation on all units. Once the initial oil change has
been completed, 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 ori -
fice, making it larger, resulting in a pressure loss. Noz -
zles should be replaced whenever pressure is less than
85% of the maximum. The frequency 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 or nozzle at-
tached, 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.)