Drum Locking Pin (optional feature)
Refer to Dwg. MHP0155 on page 61.
Lubricate at least once every month, depending on environment and duty cycle, through grease fitting (139) located in gland (138) with 2 or 3 pumps of a grease gun.
If drum locking pin is disassembled, clean all parts thoroughly and coat with clean grease. Refer to ‘Recommended Lubricants’ section. Use sufficient grease to provide a good protective coat.
Lubrication will help to prevent rust and allow easier locking pin operation.
INSPECTION
Inspection information is based in part on American Society of Mechanical Engineers Standards Safety Codes (ASME B30.7).
WARNING
•All new or repaired equipment should be inspected and tested by personnel instructed in safety, operation and maintenance of this equipment to ensure safe operation at rated specifications before placing equipment in service.
•Never use a winch that inspection indicates is damaged.
Frequent and periodic inspections should be performed on equipment in regular service. Frequent inspections are visual examinations performed by operators or personnel trained in safety and operation of this equipment and include observations made during routine equipment operation. Periodic inspections are thorough inspections conducted by personnel trained in safety, operation and maintenance of this equipment. ASME B30.7 states inspection intervals depend upon the nature of critical components of the equipment and severity of usage. The inspection intervals recommended in this manual are based on intermittent operation of winch eight hours each day, five days per week, in an environment relatively free of dust, moisture, and corrosive fumes. If winch is operated almost continuously, or more than eight hours each day, more frequent inspections will be required.
Careful inspection on a regular basis will reveal potentially dangerous conditions while still in the early stages, allowing corrective action to be taken before condition becomes dangerous. Deficiencies revealed through inspection, or noted during operation, must be reported to designated personnel instructed in safety, operation and maintenance of this equipment.
A determination as to whether a condition constitutes a safety hazard(s) must be decided, and correction of noted safety hazard(s) accomplished and documented by written report before placing equipment in service.
Records and Reports
Inspection records, listing all points requiring periodic inspection should be maintained for all load bearing equipment. Written reports, based on severity of service, should be made on condition of critical parts as a method of documenting periodic inspections. These reports should be dated, signed by the person who performed inspection, and kept on file where they are readily available for authorized review.
Wire Rope Reports
Records should be maintained as part of a
MHD56037 - Edition 5
Frequent Inspection
On equipment in continuous service, frequent inspection should be made by operators at the beginning of each shift. In addition, visual inspections should be conducted during regular operation for indications of damage or evidence of malfunction (such as abnormal noises).
1.WINCH. Prior to operation, visually inspect winch housings, controls, brakes, side rails and drum for indications of damage. Do not operate winch unless the wire rope feeds onto drum smoothly. Any discrepancies noted must be reviewed and inspected further by authorized personnel instructed in operation, safety and maintenance of this winch.
2.WIRE ROPE. Visually inspect all wire rope which can be expected to be in use during the day’s operations. Inspect for wear and damage indicated by distortion of wire rope such as kinking, “birdcaging,” core protrusion, main strand displacement, corrosion, broken or cut strands. If damage is evident, do not operate winch until the discrepancies have been reviewed and inspected further by personnel knowledgeable on wire rope safety and maintenance procedures.
NOTICE
•The full extent of wire rope wear cannot be determined by visual inspection. At any indication of wear inspect wire rope in accordance with instructions in “Periodic Inspection.”
3.AIR SYSTEM. Visually inspect all connections, fittings, hoses and components for indication of air leaks. Repair any leaks or damage.
4.PENDANT (optional feature). Ensure operation of pendant levers is smooth and winch is responsive to pendant control. Pendant levers must spring return to the neutral position when released.
5.MANUAL THROTTLE LEVER. Ensure operation of manual throttle lever is smooth and winch is responsive to lever movement. Lever must return to neutral and lock in place when released. If winch responds slowly or controls stick, do not operate winch until all problems have been corrected.
6.BRAKES. During winch operation test brakes. Brakes must hold load without slipping. Automatic brakes must release when winch motor throttle is operated. If brakes do not hold load, or do not release properly, brakes must be adjusted or repaired.
7.WIRE ROPE REEVING. Check reeving and ensure wire rope is properly secured to the drum. Do not operate winch unless wire rope feeds onto drum smoothly.
8.LUBRICATION. Refer to “LUBRICATION” section for recommended procedures and lubricants.
9.LIMIT SWITCHES (optional feature). If equipped, ensure limit switches engage and prevent operation at the required set point and with drum rotating in correct direction. Ensure limit switch properly resets.
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