Harrington Hoists and Cranes RH Wire Rope Hoist - Manual (Page 53)

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6.0 Maintenance and Handling
6.1 Lubrication
6.1.1 Wire Rope:
 For proper performance the Wire Rope must be maintained in a clean and well lubricated
condition.
 The rope should be lubricated every 3 months (more frequently for heavier usage or severe
conditions).
 To lubricate the rope, first remove any dirt, grime, moisture or other accumulations of
contaminates. Then coat the Wire Rope with Agip 360 EP/F oil or equivalent. Ensure that the
lubricant is applied to the entire surface of the rope over its entire length.
6.1.2 Wire Rope Drum, Hook Block and Sheaves:
 The drum and hook block should be lubricated every 3 months (more frequently for heavier usage
or severe conditions).
 Lubricate the Drum, Hook Block and Sheaves with Agip Blasia 320 oil or Agip Blasia GR MU3
grease.
6.1.3 Trolley Wheels and Gears:
 The Trolley Wheels and Gears should be lubricated every 3 months (more frequently for heavier
usage or severe conditions).
 Lubricate the Trolley Wheels and Gears with Agip Blasia GR MU3 grease
6.1.4 Hoist and Trolley Gearboxes – The hoist and trolley gearboxes are lubricated for life and should not
need any lubricant replacement.
6.2 Hoist Motor Brake
6.2.1 To keep your hoist working in optimum condition and prevent possible down time, it is recommended to
check your motor brake and adjustment at regular intervals.
6.2.2 Motor brake adjustment is as follows:
1)

Before proceeding, ensure that the electrical supply for the hoist or trolley has
been de-energized (disconnected). Lock out and tag out in accordance with ANSI Z244.1
“Personnel Protection -Lockout/Tagout of Energy Sources”.
2) Adjustment and inspection of the motor brake requires removal of the motor brake cover from the
hoist.
3) To remove the cover (A), remove the 4 Cover Screws (B), then remove the Cover (see Figure 6-1).
4) Remove the 3 screws (E) from the Blocking Ring (D) of the brake lock (see Figure 6-2).
5) To adjust the brake, rotate the Blocking Ring (D) counterclockwise to increase brake pressure,
clockwise for less pressure. One complete revolution is equal to 1mm of axial movement. Moving
the ring may require using a screwdriver in the notch of the Blocking Ring (D) (see Figure 6-3)
6.2.3 Motor Brake Re-assembly - After the brake is properly adjusted and inspected, reassemble the parts in
reverse order of removal.
6.2.4 Motor Brake Check
1) Ensure that the motor runs freely and quietly.
2) Ensure that the brake is not overheating.