Table 17-1. Fuel-Burning Winterization Kit Troubleshooting Chart (Cont)
13. Motor failure.
Motor lag, low rpm
Scored cam ring bore.
Foreign matter in pump
Face of seal cage scored,
or damaged seal O
Seal face of adapter
c. Check motor brushes for excessive wear.
d. Replace the cam ring.
e. Remove pump from motor: disassemble
and clean pump and filter.
a. Disassemble and inspect seal cage face
and O ring. Refinish or replace as
b. Disassemble and inspect seal surface,
Refinish or replace the adapter.
a. Remove and replace.
b. Replace motor.
c. Replace motor.
17-7. Heater Assembly and Component Inspection.
a. Inspect regulator valve leaks or damaged
threads. Check resistance of solenoid coil. Resist-
ante must be 150 ohms.
(1) Inspect nozzle orifice for damaged threads
and obstruct ion at pin holes. Pin hole diameter is
(2) Inspect sintered filter for clogged or damaged
b. Flame Switch and Quartz Rod Inspection.
(1) Inspect flame switch for distorted or broken
springs, loose flame pivot points or stripped threads
and cracked or damaged insulation. Check flame
switch for continuity.
(2) Inspect quartz rod for damage or burned
c. Inspect pump and motor assembly for damaged
threads and other damage.
(1) Pump inspection.
(a) Inspect adapter for damaged or scored
face, warped condition, damaged seal face and for
motor shaft bore wear. Face of adapter must be
parallel within 0.001 inch. Adapter bore diameter
must be 0.315 to 0.318 inch.
Adapter face must be
parallel with rotor side of adapter within 0.001 inch
(b) Inspect rotor and rotor blades for ex-
See table 17-2 and inspect rotor and
blades for proper dimensions.
(c) Inspect seal cage for scored or damaged
face. Remove all imperfections by lapping, or replace
(d) Inspect cam ring and port plate for
damaged, scored, or warped position.
(2) Motor assembly inspection.
(a) Inspect fan for damaged blades, cracks,
(b) Inspect motor for damaged receptacle
and worn brushes.
d. Inspect burner chamber for defective threads,
or burned or damaged condition.
e. Inspect heat exchanger for damage or warpage.
a. Replace all gaskets, seal rings, motor brushes
and-ceramic vaporizer at each overhaul.
b. Seal faces of adapter and seal cage can be
dressed to remove minor nicks, scratches or scoring.
Remove only material necessary to clean seal face.
c. Replace all parts that do not pass inspections
in paragraph 17-7 above and all electrical components
that do not pass electrical tests as outlined in test
procedure, paragraph 17-11 which follows.
(1) Replacement of terminal board and limit