Marley Geareducer 20 Series Field Repair Instructions Manual Download Page 1 | Manualshive

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JANUARY 1992

RM-20H

Field Repair
Instructions

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Series 20, 20T & 20.1

STANDARD AND TYPE CC (EXTENDED FAN SHAFT)

GEAREDUCER

®

M A N U A L

FIELD REPAIR–SERIES 20, 20T & 20.1 GEAREDUCERS

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Summary of Contents for Geareducer 20 Series

Page 1: ...1 JANUARY 1992 RM 20H Field Repair Instructions Series 20 20T 20 1 STANDARD AND TYPE CC EXTENDED FAN SHAFT GEAREDUCER M A N U A L FIELD REPAIR SERIES 20 20T 20 1 GEAREDUCERS...

Page 2: ...2 Series 20 20T 20 1 Cross Section Figure 1 Gear Match Numbers and Setting Data...

Page 3: ...hickness of this shim pack Item 5 1 is important in the backlash setting of the gears The shim pack should either be saved or carefully measured with a micrometer The gear hub may be removed by using...

Page 4: ...4 Figure 2 Exploded Cross Section Series 20 20T 20 1 Geareducer...

Page 5: ...5 Figure 3 Gear Backlash Measurement Figure 4 Bottom Cap Early models were supplied with a gasket between the case and bottom cap In place of gasket use Permatex Form A Gasket No 2 as shown...

Page 6: ...Use a short piece of pipe with outside diameter 010 to 020 in Iess than the retainer outside diameter Do not apply hammer blows or uneven pressure directly to seal sur face Be careful not to tip retai...

Page 7: ...im pack Item 5 1 equal to this depth and replace the disc Tighten the inside bolt circle before tightening the outside bolt circle Use 85 to 90 foot pounds torque Recheckthebacklashtomakesureitiswithi...

Page 8: ...asonal temperature changes may require one viscosity of oil for summer operation and another for winter operation Use the following table as a guide The Mobil synthetic lubricants listed below may be...

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