Separator Drive Sheave Gap-Adjusting

IMPORTANT: If gap is more than 10 mm (3/8 in.), it limits sheave travel. Any of these failures can occur when drive is operated at high end of variable drive range:

  • Belt stretch or failure

  • Bearing or shaft failure

If gap is less than 6 mm (1/4 in.), it limits torque sensing. Any of these failures can occur when drive is operated at low end of variable range:

  • Belt failure

  • Belt slippage

If unable to obtain high speed while operating at high end of variable drive range or belt slippage occurs while operating at low end of variable drive, check for incorrect gap. For best performance, set gap to specification.

Specification

Sheaves -Gap 8 mm ± 2 mm (5/16 in. ± 1/16 in.)

With separator engaged and running, set separator drive to slowest speed allowing driven sheaves to close.

H75081

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causym CAUTION: Shut OFF engine, set parking brake and remove key.

Loosen cap screws (A) holding gearcase and draw nuts (B).

NOTE: Shift gearcase to neutral to properly seat belt between sheaves. Manually rotate sheaves, while adjusting draw bolt.

Adjust draw bolt (C) to obtain specified gap between driven sheaves.

Specification

Sheaves -Gap 8 mm (5/16 in.)

Retighten cap screws (A) and draw nuts (B).

Shift two speed gearcase to desired speed range.

H77291


A-Cap Screws (4 Used)
B-Draw Nuts
C-Draw Bolt

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