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MAINTENANCE
PRSIF2/PRSDIF2 98902 12/28/01
4-1
DAILY MAINTENANCE:
Follow same procedure for Shut Down and Storage.
PERIODIC MAINTENANCE:
1. Twice a month, flush a white vinegar solution
(one quart vinegar to two gallons water) or anti-
browning solution (mixed as directed) through
the extractor. This will prevent build-up of
alkaline residue in the system.
2. If spray jet becomes clogged, remove the spray
tip, wash it thoroughly, and blow dry. NOTE: D
O
NOT USE PINS
, WIRE, ETC. TO CLEAN NOZZLE AS
THIS COULD DESTROY THE SPRAY PATTERN
.
3. Apply silicone lubricant to solution nipple.
4. Periodically inspect all hoses, electrical cable
and connections on your machine. Frayed or
cracked hoses should be repaired or replaced to
eliminate vacuum or solution pressure loss. If
the cable insulation on the power cord is broken
or frayed, repair or replace immediately. Don’t
take chances with electrical fire or shock.
Only qualified
maintenance
personnel are to
perform the following repairs.
SOLUTION PUMP REPLACEMENT:
1. Turn off all switches and unplug the
machine.
2. Unfasten screws holding pump plate to
bottom of solution tank.
3. Remove solution hoses from fittings on
pump.
4. Remove pump from brackets and remove
fittings and grounding wire.
5. Reverse process to install new replacement
pump.
VACUUM MOTOR REPLACEMENT:
1. Turn off all switches and unplug machine.
2. Unfasten latch at back end of machine and
remove recovery tank.
3. Unfasten screws holding switch plate to
solution tank. Remove from solution tank.
Locate the vacuum motor wires and
disconnect at the connector.
4. Unfasten screws holding vac plate to switch
plate. Remove the vacuum motor.
5. Reverse process to install vacuum motor
replacement.
WARNING: The
green ground wire
must be attached
for safe operation.
See wiring diagram.
Note: When replacing carbon vac motor
brushes loosen wire terminal BEFORE
removing screws on bracket.
Important:
These brushes wear
quicker as the length
shortens due to
increased heat.
Spring inside brush
housing will damage motor
if brushes are
allowed to wear awa
y
If armature commutator is not concentric,
extremely pitted, or grooved the motor will
need to be replaced or sent to a qualified
service center to restore vac performance.
Periodically check the length of the carbon
brushes. Replace both carbon brushes
when either is less than 3/8" lon
g
.
Carbon
Br
us
h
es
2
30
V
Vac Motor Carbon Brushes
Re
p
lacement