Dynabrade

Motor Assembly:

 

Step 1

Install the 01479 Spacer onto the rotor.

Step 2

Select .003" (~0.08 mm) shim thickness from the 54529 Shim Pack. Install shims into the 01478 Front Bearing Plate.

Step 3

Install the 02649 Bearing into the front bearing plate and onto
the rotor.

Important:
For the planetary geared models use the RAISED CENTER of the 96240 Bearing Press Tool and the arbor press to install 02649 Bearing along with bearing plate.

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Step 4

Fasten the rotor in the vise with aluminum or bronze jaws so that the spindle is pointing up. Use a 12 mm socket and torque wrench to install the 50133 Adapter or 01435 Collet Body.
Turn clockwise. (T 17 N•m/~150 in. lbs.)

Step 5

Pull the front bearing plate forward to take play out of the bearing.
Use a .001" (~0.03 mm) thick feeler gauge to check the clearance between the bearing plate and rotor.

Step 6

Clearance should be .001"-.0015" (~0.03-0.04mm). Repeat steps 2-5 if the clearance needs further adjustment. Install or remove shims as required.

Step 7

Use Dynabrade Air Lube 95842 10W/NR (or equivalent) to lubricate the 01480 Vanes. Install the vanes in the rotor.

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Step 8

Install the 01476 Cylinder and the 02673 Rear Bearing Plate
so that the air inlet openings line-up.

 

Step 9

Position the 02696 Bearing onto the bearing journal of the rotor.

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Step 10

Use the RAISED CENTER of the 96242 Bearing Press Tool and the arbor press to install the 02696 Bearing onto the rotor, and into the 02673 Rear Bearing Plate.

 

Important:
Carefully press the bearing until the plate just touches the cylinder. Establish a "snug-fit" between the bearing plates and the cylinder.

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Step 11

If the model contains a 02679 Shield, place a small amount of clean grease on the seal of the 02696 Bearing and stick the shield against the bearing.

Step 12

Install the motor into the 01546/50776 Housing.

Notice:
The 02673 Rear Bearing Plate has an air channel. It is not necessary to orient the air inlet of the motor with the air inlet on the inside of the housing.

Step 13

Apply a small amount of Loctite Primer #7649 to the threads of the 01546/50776 Housing. Apply a small amount of Loctite #567 to the housing.

Step 14

Use the 50971 Lock Ring Tool and a torque wrench to install the cover/lock nut. (T to 28 N•m/~250 in. Lbs.)

Motor Assembly Complete.

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