Wheelchair lifts shall be serviced based on duty cycles. A duty cycle is one full cycle from stowed position back to stowed position. The number of cycles a lift is operated in a given shift will be documented on the daily trip sheet. The supervisor will keep a running tally of the lift cycles for each vehicle, and send the vehicle in for the next designated service prior to reaching the maximum number of lift cycles allowed between services.
There are two different maintenance schedules for wheelchair lifts/ramps: Schedule A (Braun) and Schedule B (Ricon)
Braun: Schedule A: Includes inspection and service at 150, 750, 1,500 and 4,500 cycles with service and inspection at consecutive 750 cycles.
Braun 750 Cycles
Inboard roll stop hinge
Outboard roll stop clevis pin pivot points
Outboard roll stop pin roller bearings
outboard roll stop foot bearings
Outboard roll stop arm slots
Lift-Tite™ latches tower pivot points
Lift-Tite™ latch gas (dampening) spring pivot points
Inspect Lift-Tite™ latches and gas speings for wear or damage (bent, deformed or misaligned), positive securement (external snap rings) and proper operation.
Inspect inboard and outboard roll stops for proper operation
Inspect outboard roll stop foot pivot for proper operation, positive securement and detached or missing spring.
Platform turnbuckle pivot points
Inspect lift for wear, damage or any abnormal condition
Inspect for rattles
Adjust fold pressure and outer barrier fold pressure (if applicable)
Source: MaintainX (Community Member)