Ametek 081291 Service And Parts Manual - Page 3

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imbalance greatly speeds bearing wear, thus reducing blower life. Disassembling the blower will

void warranty, so contact the factory for cleaning authorization.

3. Support the Piping - The blower flanges and nozzles are designed as connection points only and

are not designed to be support members.

Caution: Plastic piping should not be used on blowers larger than 1 HP that are operating near

their maximum pressure or suction point.

temperatures can exceed 200ºF. Access by personnel to the blower or nearby piping

should be limited, guarded, or marked, to prevent danger of burns.

4. Wiring - Blowers must be wired and protected/fused in accordance with local and national

electrical codes. All blowers must be grounded to prevent electrical shock. Slo-Blo or time delay

fuses should be used to bypass the first second of start-up amperage.

5. Pressure/Suction Maximums - The maximum pressure and/or suction listed on the model label

should not be exceeded. This can be monitored by means of a pressure or suction gage (available

from Rotron), installed in the piping at the blower outlet or inlet. Also, if problems do arise, the

Rotron Field representative will need to know the operating pressure/suction to properly diagnose

the problem.

6. Excess Air - Bleed excess air off. DO NOT throttle to reduce flow. When bleeding off excess air,

the blower draws less power and runs cooler.

Note: Remote Drive (Motorless) Blowers - Properly designed and installed guards should be used

on all belts, pulleys, couplings, etc. Observe maximum remote drive speed allowable. Due to the

range of uses, drive guards are the responsibility of the customer or user.

tensioned using belt gauge.

Maintenance Procedure

When properly piped, filtered, and applied, little or no routine maintenance is required. Keep

the filter clean. Also, all standard models in the DR, EN, CP, and HiE series have sealed

bearings that require no maintenance.

hours, on average. Replacement bearing information is specified on the chart below.

Bearing

Part Number

Size

510217

205

510218

206

510219

207

510449

203

516440

202

516648

307

516840

206

516841

207

516842

208

516843

210

516844

309

516845

310

516846

311

516847

313

Bearing should be changed after 15,000 to 20,000

Seal Material

Grease

Polyacrylic

Buna N

Blower housing and nearby piping

Nye Rheotemp 500

30% +/- 5% Fill

Exxon Polyrex Grease

Belts should be

Heat Stabilized

Yes – 325 F

Revised – June 2016