Daktronics Pro Series Operations and Maintenance Manual - Manual (Page 102)

MAINTENANCE 95
15 MAINTENANCE
In order to maintain a safe and efficient hoist system, it is necessary to implement a regular and continual
preventative maintenance program. Listed below are the critical areas of the hoist system that need consistent review,
inspection, and/or correction. This list is a guideline to assist in establishing a maintenance program, but cannot
replace ongoing visual inspection by operating personnel. Daktronics should be contacted immediately if any
irregularities are found.
To prevent accidents, injuries, or failures Daktronics recommends a professional inspection at least once each year.
Daktronics offers the most thorough preventative maintenance program in the motorized rigging industry. This
program will be offered to facility management after your hoist installation is complete.
The system should be run for a minimum of 2 minutes every month in order to ensure proper
lubrication. Neglect may result in damage to the rigging system.
Periodic inspections when operating the hoist should include the following:
SWAGED CONNECTORS Look for wire rope damage where the swaged connector contacts the cable.
Check for broken cable strands.
TURNBUCKLES: Check that cotterpins and pin nuts, or bolts and nuts are in place and secure.
Check that pins in jaws are not bent. If bent pins are found, the set has been
over-loaded and should be inspected professionally for more serious damage.
WIRE ROPE: Check for worn areas, kinks, broken wire strands, or any deformation. Examine cable
runs for any obstructions or sources of abrasion. Excessive dirt will shorten the life of
the cable. If cable has begun to rust it must be replaced immediately.
REDUCERS: Check for visible oil leaks. If any noticeable oil leaks occur, call Daktronics immediately.
BRAKEMOTORS: Listen for unusual noises such as squeaking or grinding which may indicate the need
for lubrication or brake adjustments. Call a Daktronics service representative for any
brakemotor service (585) 924-5000.
ELECTRICAL: Check to ensure that electrical flex connections are secure and that no wires or
connections have been pulled apart. WITH ALL POWER OFF, open starter cabinets
and verify that wires are clean and orderly. Check that all cabinet doors are properly
secured prior to energizing.
HOIST ASSEMBLY: Check that all cables are smoothly wrapped on drum. Cables should not climb over
adjacent wraps. If excessive dirt is accumulating on drum, steps must be taken to
remove and prevent this accumulation.