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PROBLEM
PROBLEM
PROBLEM
CAUSE
CAUSE
CAUSE
SOLUTION
SOLUTION
SOLUTION
Mix ratio test was not performed
at the normal operating pressure
of the pump
Perform ratio test again following
ratio test procedure. See
.
Running out of one material.
Check and refill material
reservoirs. Repeat the test
after the air has been removed
from the system.
Mix ratio test is significantly
different from the mix ratio setting.
The displacement cylinder(s) are
worn or the check valves are not
seating.
See troubleshooting techniques
below to isolate the problem
cylinder(s). See
.
Running out of one material.
Check and refill material
reservoirs. Remember that
once air is in the fluid system it
may take a while for all of it to
escape.
Spray output is spitting
Siphon hoses are leaking in air.
Tighten and seal all siphon fittings
on proportioning pump and feed
pumps.
A squeaking or knocking noise is
heard.
The bearings are dry or worn.
Lubricate the bearings or
replace them if required. See
.
Running out of one material.
Check and refill material
reservoirs.
The proportioner speeds up or
runs erratically
The cylinders are worn or
damaged.
See troubleshooting techniques
below to isolate the problem
cylinder(s). See
.
18
3A3092A