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
(16 pages)
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