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5.
Identification
of Date Code/Model
Number
•
Underside of the foot of the unit is a motor rating label that contains the model
number and the date of manufacture.
6.
Initial Functional
Test
•
Plug unit into a HI-POT tester to detect dielectric failures.
•
Plug unit into 120V outlet to determine
obvious failures such as dead motor,
dead heater, dead heater light or abnormal noise.
•
Fill water and solution tanks.
•
Turn on power switch, amps should be approximately
6 AMPS.
Then turn on
heater
switch
(if present),
the current
will jump to approximately
9AMPS.
When the heater switch is turned "ON", the heater light and lighted switch (if
present)
should come on.
If any of these conditions
do not occur, check for
proper wiring (heater switch).
•
To test solution
flow, depress trigger until the unit's
flow indicator
fills with
water and the red spinner begins to spin rapidly.
•
Once proper flow has been determined,
all water must be purged from the unit
using air at 5-10 PSI.
The purpose
of removing
the water
is to prevent
cracking
of internal components
due to freezing and expansion.
Repair Guide Section
•
Disconnect
cleaner
from power
source before
servicing.
Reference
wiring
diagram before attempting
to wire any internal components.
7. Pump
•
Remove
six screws from the main housing
•
Remove
window, flow indicator cap and belt access door
•
Unsnap main housing from front of base
•
Remove
main housing assembly
•
Remove four screws surrounding
pump
Remove pump by lifting upward and turn to pivot off belts
•
Disconnect
tubing and remove old pump
•
Place smooth belt over pump pulley and insert new pump into cogged belt and
seat pump
•
Reconnect tubing and secure pump to base with four screws
•
Reattach
top cover and secure with six screws (Note: It is critical
that the
upholstery
duet tab be properly
located into the slot on top of the motor cover
to insure proper alignment
of main housing over duct.
This tab may pop out
of the slot each time the housing
is removed,
so check for this condition
on
every repaired
unit.
Also, tubing and duets should be routed per Photograph
#1, section 17)
03/03/99 Rev C
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