lug (red tagged) located in rear of unit if three-wire grounded type 110-120 volt power supply is not available.
Attach other end of ground wire to convenient water pipe or suitable ground.
6. Plug extension cord from the unit into 110-120 volt, 60 cycle power supply receptacle.
7. Cleaning Compound - Use only AC type CL-3 Aircraft Spark Plug Cleaning Compound. Open and lift door off
hinges for best accessibility. Loosen thumb nut on bail assembly, swing bail aside and remove compound
container. Pour 1/2 the contents of type CL-3 package- into compound container (This is approximately 2-1/2# of
CL-3 Compound). Replace compound container and retain with bail by finger-tightening thumb nut.
8. Install Nozzle Assembly by - removing cleaning adapter retaining ring and cleaning adapter. Remove cleaner
nozzle assembly (consists of rubber nozzle and steel bushing) from miscellaneous parts envelope.
Place in recess of casting at plug cleaning position. Replace cleaning adapter and lock in position with cleaning
adapter retaining ring. Install new Type CL-73 rubber nozzles each time cleaning compound is replaced.
For best firing end cavity cleaning results the spark plugs should be thoroughly dry and free of
any oil, grease, or soluble deposits.
1. Select rubber cleaning adapter that corresponds to the thread size of spark plugs to be processed; 14MM or
18MM. Install adapter into unit and retain in position with lock ring.
2. Insert firing end of spark plug into adapter. 14MM or short reach 18MM type plugs full length of threads to gasket
seat. Long reach 18MM type plugs should be inserted only about 1/2 of thread length.
3. Cleaning Sequence:
A. Wobble the terminal end of plug on about a one inch diameter circle with one hand.