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Twin Rtry Maintenance Section 4-12
MAINTENANCE
GREASING INNER AND OUTER DRAFT BEAM
PIVOT POINTS
Locate the grease zerks on the inner and outer draft beam pivot bosses. Inject
Lithium-Complex Extreme Pressure grease conforming to NLGI2-ISO 320
specifications into each zerk until grease protrudes from joints. Grease all pivots
daily or every 8 hours of service.
GREASING THE UPPER AND LOWER SHEAVES
Locate the grease zerks on the ends of the upper and lower sheave pins as
shown below. Inject Lithium-Complex Extreme Pressure grease confroming to
NLGI2-ISO 320 specifications into each pin until it protrudes from the ends. These
should also be greased daily or for every 8 hours of service.
TIGHTENING KNIFE BOLTS AND DISK BOLTS:
After every 8 hours of operation or daily, the Knife Bolts and Disk Bolts should be
tightened as follows:
Knife mounting bolts (2ea.) torque oiled to 800 ft. lbs.
Disk mounting bolts (6ea. ) torque dry to 204 or oiled to 184 ft. lbs.