Grifco Fire Shutter, Инструкция по эксплуатации

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14
MAINTENANCE
Testing
The controlled descent device should be tested every six months in most installations. In corrosive or dusty environments, the
device should be tested more often.
Friction Disc
Of the operator's moving parts, the only one that could possibly wear is the friction disc. The disc is located on the governor.
The disc is 6mm (1/4²) thick. If the disc wears so that it is less than 3mm in thickness, it will need to be replaced. (This type of
wear should not occur during the lifetime of the product.) To replace the disc, remove the selok pin that fixes the governor-
hinging device to the shaft. When the pin is removed, the hinging device and the friction plate may be removed allowing
replacement of the friction disc.
Monthly

Check chain alignment and tension. Adjust if required

Check PE / IR beam/s and bump edge functionality where applicable
Quarterly

Check tightness of fixing bolts and (sprocket) grub screws. Adjust if required * refer page 6

Check correct electrical operation

Check manual operation via hand chain

Lubricate the drive chain

Lubricate flyweight linkages and the sliding pin when it is extended from the output shaft

Anticorrosion spray should be applied to all components to prevent them from deteriorating

Check door balance. Adjust if required

Conduct door maintenance in accordance with door manufactures guidelines. This will include door balance
SERVICE MUST BE CARRIED OUT BY A QUALIFIED TECHNICIAN
CAUTION
DO NOT allow anticorrosion spray, grease or any other lubricating product come into contact with the friction
disc or friction plates!
TROUBLESHOOTING
PROBLEM Resolution
Shutter will not lift after
engaging release arm Increase spring tension on release arm, or remove slack from cable linkage.
Shutter does not descend when
mechanism tested A) Ensure drive chain is aligned between sprockets.
B) Ensure drive chain is not overtightened.
C) Ensure sprockets have not been attached so that eccentric rotation results.
D) Check for and remove any obstructions from the shutter guides.
E) Ensure roller or ball radial thrust bearings have been used on shutter axle.
F) Increase the weight on the bottom rail. And/or
G) Increase shutter reverse springing.
H) Release some of the spring tension from the shutter drum.
Shutter falls back down when
operated Ensure release arm fully engaged.