Cooper Bussmann 15G Series 15G MOTOR & GOVERNOR

PART NO.

865686

865687

865693

865694

865695

865697

865786

865787

865988

865990

865991

867082

867083

867084

867085

867086

867388

NAME OF PARTS

Governor Spider *

Governor Center *

Front Bearing Plate

Rotor

Exhaust Deflector

Front Bearing Retainer

Wheel Guard (3")

Wheel Guard (2-1/2")

Wheel Guard (4")

Driving Flange (4")

Outer Flange (4")

Governor Spring - See Chart

Governor Adjustment Screw

Governor Weight Pin *

PART NO.

812164

842970

844280

847095

864232

864234

864236

864735

864821

865653

865655

865657

865658

865659

865660

865661

865663

NAME OF PARTS

Cylinder Pin

Key

Arbor Nut

Rear Rotor Bearing

Rear Bearing Plate

Rotor Blades

Cylinder

"O"-Ring

Safety Lock Pin *

Driving Flange

Exhaust Deflector Retainer Ring

Rotor Collar

Front Rotor Bearing

Outer Flange

Dust Seal

Arbor Collar Grip Ring

Governor Weight *

QTY.

PARTS LIST — 15G MOTOR & GOVERNOR

SERVICE INSTRUCTIONS FOR 15G MOTOR & GOVERNOR

15G MOTOR & GOVERNOR

*These parts can be purchased as a subassembly using number: 861176

DISASSEMBLY

Clamp the cylinder 864236, lightly in a soft jawed vise and tap the rotor

865694, out of the front rotor bearing 865658. This will allow the front

rotor bearing, front bearing plate, 865693, rotor collar, 865657, cylinder,

and rotor blades, 864234, to be removed from the rotor. Clamp the rotor

in the vise and unscrew the governor (left hand threads). The governor

adjusting screw, 867086, may now be removed from the rear of the

rotor.

REASSEMBLY

The motor is reassembled in the reverse order of disassembly. Wash

all parts thoroughly ina solvent and visually inspect for damage or wear.

Check bearings for wear which can be detected by excessive end play,

or roughness of the bearings which indicates a brinelled condition. Pack

both rotor bearings with a good grade of No. 2 Moly Grease. Particular

attention should be paid to the governor assembly, replacing any of its'

parts that show wear or damage. It is recommended that new rotor

blades be installed at each repair cycle. If not replaced, the used ones

must measure a minimum of 7/32" (5.5mm) at both ends.Failure of

these parts could cause damage to more expensive components. Also,

be sure that the blades are no longer than the rotor.

The rotor in this tool must be set by means of the rotor collar, 865657,

so that when assembled, there is .0015" clearance between the front

end of the rotor and the face of the front bearing plate To properly set

the rotor collar, assemble the front bearing (shield toward backhead)

into the front bearing plate. Measure the depth of the inner race from the

face of the bearing plate. Select, or fit by sanding, an rotor collar .0015"

larger than this dimension. Governor center 865687, governor weights

865663, and governor pins No. 867388, should be checked periodically

for wear and replaced if excessively worn.

864234

8656994

847095

864236

812164

865693

867086

865663

864821

These parts

are included

in governor

subassembly

865687

864821

867388

865663

865686

867388

865657

865658

865660

842970

865697

864735

865695

865655

RPM Part No.

9000 867082

12000 867083

14000 867084

18000 867085

864232

865653 2 1/2", 3"

865990 4"

844280

865661

865659 2 1/2", 3"

865991 4"

865787 2 1/2"

865786 3"

865988 4"