Instructions / Assembly

3/12 November / 2006
I. - FINAL TEST FOR PRODUCT SAFETY
AT THE COMPLETION OF ANY REPAIR THE PRODUCT SHOULD BE ELECTRICALLY TESTED FOR
RUNNING AND ELECTRIC STRENGTH AS FOLLOWS
ELECTRIC TEST
A). - Set hi-pot meter at 1500 V
B). -Product Switch to on position.
C). -Touch one probes of tester to on blade of power cord plug and touch other probe to handle tube.
There should be no breakdown.
RUNNING
RUN THE MACHINE WITHOUT BRUSHES ( FREE RUNNING ) AND CHECK :
A) . -There should be no unusual noise or vibration.
B) . -The carbon brushes spark should be small and uniform
C) . – The current shall bi no more than 1.5 A
D) .- Run the machine with scrubbing brushes on the floor ,the current shall be 3.0 A
II. - REPLACEMENT PROCEDURES ASSEMBLY
1.TO REPLACED A FIELD (41 ) OR ARMATURE ( 63 )
1.1.-Disconnected elbow hose connector ( 41 ) from tray assembly ( 95 )
1.2.- Remove cover ( 31 ) by removing four cover screws ( 93 )
1.3.-Pull open the connector on the motor cable ( 19 )
1.4.- Remove the connector support ( 87 ) with the connector block ( 75 )
1.5.-Remove gear cover plate screws ( 61 ) from both sides along with cover plates and gaskets ( 84-85-86 )
1.6.-Remove the four motor covers screws ( 61-99 ) and the motor cover ( 60 )
1.7.-Remove the bearing clamp screws ( 68 ) from both sides along with the bearing clamps ( 69 )
1.8.- Remove the carbon brush holder assembly ( 62 )
1.9.-Remove the field support screws ( 64 ) and field supports ( 65-66 )
1.10.-To replace the field , the connector block ( 75 ) must be removed , push the retaining tab of each terminal with a pin and
release it by pulling it pulling it out .
1.11.-The field ( 67 ) and armature ( 63 ) may now be lifted out replacement .
2.- TO REASSEMBLE
2.1.-Position the armature in the field so that the armature commutator is on the same side as the field leads
2.2.-Position an armature bearing package ( 70-71-72-74 ) on each end of the armature shaft so that the rectangular
projection on the seal is facing the armature winding and is between the bearing and armature .
2.3.-Position the armature ( 63 ) and the field ( 67 ) in the motor frame ( 88 ) making sure the leads side of the field ( 67 ) are
placed close to the bottom windows in the motor frame ( 88 ) witch are next to the carbon brush holder ( 62 ) .
2.4.-The armature bearing and seals on the armature ( 63 ) ate positioned in their respective places in the motor frame ( 88 )
making sure the two straight sides on the boss of the bearings are in the vertical position.
2.5.-Hold the field position replacing the fields supports ( 65,66) and screws ( 64 )
2.6.-Replace the carbon brush holder ( 62 ) and carbon brushes .
2.7.-Make sure that armature thrust plates and the armature thrust balls are in position on the ends of the armature shaft.
2.8.- Replace armature bearing clamps ( 69 ) on top of the armature bearing ,with screws ( 68 )
2.9.-Adjust endplay by adding thin plates until there is 0.005”-0.010” clearance between the armatures thrust plate on the fan
end of the unit .measured by a feeler gage.
2.10.-Replace the cover plates ,gaskets and screws ( 84-85-86 ) and ( 61 ).
2.11.-place the block (75i), n the detent connector ( 75 ) , and push close the connector on motor cable ( 24 ) .
2.12.- Place the unit into the cover ( 31 ) and secure with the four cover screws ( 93 ) .
2.13.-Reconnect the elbow hose connector ( 41 ) into the tray ( 95 )