Dynabrade 52452 Manual - Página 3

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Important:

Dynabrade P/N 11399 Type 27 Wheel Adapter Kit (included) must be used with all Type 27 wheels larger than 5" diameter.

Type 27 Wheels because of their shape and

usage, must be mounted with specially designed

adapters (see illustration).

Type 27

Wheel adapter/back flange must extend beyond the central

hub or raised portion of the wheel — and contact the flat

portion of the wheel to counteract side pressure.

The adapter nut fits into the depressed center portion of the

wheel to prevent interference with the work. This nut should be

tightened only enough to prevent slippage and satisfactorily

transfer the driving torque of the spindle to the wheel through

the adapter assembly.

Some wheels are supplied with throw away adapters (mounting

flanges) attached by the manufacturer. These adapters should

not be used again.

Important Safety Information

1. Always use eye, face and body protection.

2. Always use wheel guard.

3. For safe use of this tool, always comply with

OSHA, ANSI Standards B7.1 and B186.1.

Warning: Do not remove wheel guard.

Important: Manufacturer's warranty is void if tool is disassembled before warranty expires.

A Motor Repair Kit (96259) is available which contains special tools for disassembly/assembly. Please refer to parts breakdown for part identification.

Tool Disassembly:

1. Disconnect tool from power source.

2. Remove back-up pad with a 24mm wrench (P/N 95304).

3. Insert 01697 Inlet Bushing securely into vise.

4. Roll 07136 Handle Grip Back away from housing.

5. Remove 52495 Nut by using a 32mm wrench (P/N 96079).

6. Separate valve body from housing.

7. Remove 95720 Screws (4) and 01791 Washers (4) from 52461 Housing Cap. Remove housing cap and 52477 Gasket.

Motor Disassembly:

1. Grip onto governor cage assembly and pull motor assembly from housing.

Note: If motor assembly does not come out freely, gently tap tool rotor side down to "pop" motor from housing.

2. Remove governor cage assembly from 52466 Rotor (left hand thread).

3. Insert a tap pin into rear bearing plate and press the 52466 Rotor from the rear bearing plate.

4. Place motor assembly in softjaw vise.

5. Remove 01823 Washer and 01835 Shim from assembly.

6. Remove 01815 Rotor Nut with an adjustable wrench. Twist rotor nut from shaft

7. Remove 52475 Cylinder, blades (4) and spacer from rotor.

8. Remove 52472 Front Bearing Plate , front bearing and shims from 52466 Rotor. Note: Bearing, front bearing plate and spacer are a slip fit into rotor.

9. Press 01036 Bearing from bearing plate.

Motor disassembly complete.

Motor Reassembly:

Important: Be certain all parts are cleaned and in good repair before reassembly.

1. Place 52466 Rotor in padded vise with threaded spindle facing upwards.

2. Slip 52467 Spacer onto rotor.

3. Place .002" shim into front bearing plate as initial spacing and slip 01825 Bearing into plate. Note: 52471 Shim Pak contains .001" and .003" shims.

Mounting Arrangement for Type 27 Wheels

Disassembly/Assembly Instructions

(continued on next page)

Grind with

this face

* Identifies parts included in 11399 Type 27 Wheel Adapter Kit.

Type 27 Guard

97311 Spacers

(as req.)

* 52176 Wheel Adapter/Back Flange

extends beyond the raised

hub portion of wheel.

Torque 28 N•m (250 lb • in.)

Depressed Center Wheel

(not included)

* 07139 Adapter Nut

* 95051 3/8" Hex Key

Note: Additional spacers may be required.