Assessments - 2, GPA: 3.5
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Motors To Replace Drive Motor 1. Discontinue power to dryer. 2. Remove drive belts. 118 3. Disconnect wiring harness from motor. 4. Remove bolts holding motor to mount and replace with new motor. Do not tighten bolts. 5. Remove pulley from old motor and install on new motor. 6. Align motor pulley with idler pulley and align motor shaft with idler shaft and tighten bolts. 7. Replace belts and adjust belt tension. 8. Re-tighten bolts. To Replace Impeller Motor 1. Discontinue power to dryer. 2. Disconnect motor harness from motor. 3. Remove nuts and washers holding the motor mount to the rear of the dryer and pull motor mount away. 4. Remove the two left-hand nuts on the motor shaft retaining the impeller and work the impeller free from the motor shaft by means of a wheel puller to prevent damage to the motor shaft. 5. Remove bolts holding motor to motor mount and replace with new motor. 6. Align motor with impeller face in plane with the motor mount at no less than 3/16" clearance. 7. Re-install the motor mount, and reconnect motor harness. 0 . Impel 1er To replace impeller follow steps 1 through 4 of "To Replace Impel 1er Motor". P. To Replace Lint Screen 1. Open and remove lint door from dryer. 2. Remove the two (2) hex screws securing the lint screen hold-down bracket. 3. Remove lint screen hold-down bracket. 4. Slide lint screen from lint coop. 119 5. Re-install new screen by reversing procedure. Q. To Replace Electric Heating Element 1. Discontinue power to dryer. 2. Remove perforated access cover on electrical oven. 3. Disconnect connecting hardware and ceramic insulator from screw terminals of element to be replaced. 4. Remove access cover from opposite side of oven. 5. Slide element out of oven. 6. Replace element by reversing procedure. R. To Replace Oven Relay Contactor 1. Discontinue power to dryer. 2. Remove junction box cover from electric oven. 3. Loosen cable connector screws and remove electric cables from contactor terminals. 4. Remove wires from coil of contactor. 5. Remove hardware holding contactor (and ground lug) to wall. 6. Replace contactor by reversing procedure. S. To Rep!ace Steam Coi1 1. Shut off steam supply line. 2. Start dryer and run for 10 minutes to relieve inlet steam pressu re. 3. Stop dryer and discontinue power to dryer. 4. Shut off condensate return line. 5. Remove steam coil manifold plug and let any condensate drain from coil. 6. Disconnect piping from defective coil. 7. Remove hardware holding defective coil to plenun housing. 120 8. Lift defective coil off dryer. 9. Install new coil by reversing procedure. Use 6 percent silver solder to repair minor leaks at joints, fittings, and U-tube joints. In high-pressure coil, do not repair leaks in walls of tubes. Coil must be replaced. NOTE: Repairs should only be made by a qualified technician. T. To Replace Motorized Steam Valve 1. Shut off steam supply down stream of steam valve. 2. Start dryer and run for 10 minutes to relieve inlet steam pressure. 3. Stop dryer and discontinue power to dryer. 4. Shut off condensate return line. 5. Disconnect the three (3) power lines from motor of steam valve. 6. Disconnect steam valve from piping. 7. Install new valve by reversing procedure. 121 SECTION XIV Trouble Shooting The information provided will help isolate the most probable component(s) associated with the difficulty described. The experienced technician realizes, however, that a loose connection or broken or shorted wire may be at fault where electrical components are concerned...not necessarily the suspect component itself. ELECTRICAL PARTS SHOULD ALWAYS BE CHECKED FOR FAILURE BEFORE BË T TTC'RETURNED ~'TP~TRE" FACTO RY~- The information provided should not be misconstrued as a device for use by an untrained person in making repairs. Only properly licensed technicians should service the equipment. Observe all safety precautions displayed on the equipment or specified in this manual while making repairs. A. Dual Timer Controls T rouble 1. Dryer will not start. Probable Cause Open circuit breaker switch or blown fuse b. Faulty motor relay c. Faulty "Push to Start" relay d. Faulty timer e. Main door switch is out of adjustment or is defective. f. Faulty motor 2. Tumbler motor runs, a. the burner is on, but the tumbler will not b. re volve. Broken, damaged, or loose V-belt Belts are contaminated (oil, grease, etc.) c. Loose or broken motor pulley 3. Dryer motors start a. Manual reset thermostat in lint but the glo-bar is not compartment has tripped or is lighting. defective. (models prior to October 1, 1985) 122 Dryer operates. Glo-bar heats up and stays on. Dryer operates. G1o-bar heats up and goes out, but gas does not flow. b. Lint compartment automatic safety thermostat (225°) is defective, (models manufactured as of October 1, 1985) c. Sail switch is out of adjustment, defective, or sail switch damper is not closing due to back pr...