Service Recommendations

Preventive maintenance is recommended at regular intervals. If the product is not working properly, take it out of service and inspect it.

The gear wheels of the GFA module are exposed to high surface pressure it is important to regularly check their condition. If any of the gear wheels are worn or damaged, all the gear wheels must be replaced. Needle bearings are to be replaced if damaged.

Unused gears may be subject to efficiency drift during break-in. After changing any of the input gear/ socket/ gears during service, it is recommended to increase the frequency of the calibration intervals during the first 3,000 tightenings. At regular intervals between the service, additional grease is to be applied through the grease nipples.

In case of faulty tightening results:

Inspect the input gear, output gear, and all interior parts for wear and change worn parts.

Follow these general guidelines:

Daily Service

Clean the GFA exterior.
Clean the system, wipe carefully with a clean, smooth cloth.
Inspect the GFA for any damage.
Inspect all tightening elements on the GFA and the connection to the tool.
Run functional tests and listen for any abnormal noise.
Lubricate the system using grease nipples.

Environment dependent service

Environment	Service Interval
Very dirty (e.g. heavy industry/outdoor environment)	Every 50,000 tightening
Dirty (e.g. industry where material removal on the same premises)	Every 125,000 tightening
Clean (e.g. typical assembly line)	Every 250,000 tightening
Very clean (e.g. lab environment/office environment)	Every 500,000 tightening

Yearly Service

Disassemble the GFA.
Clean the GFA interior.
Clean the interior of the housing with grease remover.
Clean the cogs, needles and bearings separately with grease remover.
Clean parts from eventual remainder of grease remover, use brake cleaner or equivalent.
Lubricate the GFA interior.
Assemble the GFA system.
Run the GFA without load for 5 min to distribute the grease.
Calibrate the GFA to ensure correct torque.