3-33. CONTROLLER MECHANISM (cont)
Remove panel light (1) from top of controller mechansim (3).
Remove eight mounting screws (2) from top and sides of controller mechanism (3).
Remove controller mechanism (3).
Use multimeter and check the switches individually. Make a resistance test to check that the switches open and
close while moving the throttle from STOP to THROTTLE 8 position.
Use a voltmeter and test resistor (7). Make a resistance test to check that the resistance is 300 ohms 5%.
Use a voltmeter and test resistor (16). Make a resistance test to check that the resistance is 75 ohms 5%.
CLEANING, INSPECTION, AND REPAIR
Drycleaning solvent P-D-680 is toxic and flammable. Wear protective goggles and gloves and use
only in a well-ventilated area. Avoid contact with skin, eyes, and clothes and don't breathe vapors. Do
not use near open flame or excessive heat. The flash point is 100 - 138F (38 - 59°C). If you become
dizzy while using cleaning solvent, get fresh air immediately and get medical aid. If contact with eyes
is made, wash your eyes with water and get medical aid immediately.
Compressed air used for cleaning purposes will not exceed 30 psi (207 kPa). Use only with effective
chip-guarding and personal-protective equipment (goggles, shield, gloves, etc.).
Repair consists of replacing defective switches and/or replacing resistors.
Use drycleaning solvent and clean parts. Dry with compressed air.