Maintenance - Wolf KG Gigant Series Installation And Maintenance Instructions Manual

Fan section
V-belt tensioning
screws
V-belt tensioning screws
Heat exchangers
(heater / cooler)
Shutter flaps
18

Maintenance

Before starting any maintenance work, the main switch of the system and the
repair switch must be switched off and safeguarded against reactivation!
The inspection doors may only be opened once the fan has stopped moving.
Fan bearings requiring lubrication must be greased with saponified lithium-
based grease every 2500 operating hours.
Maintenance-free bearings are permanently lubricated and identified by
appropriate labels.
Standard three-phase motors are maintenance-free.
For special motors, observe the maintenance instructions of the manufacturer.
The V-belts must be retightened for the first time after 50 operating hours.
Thereafter regular checks, depending on the operating conditions, are required.
Caution
The belts require, however, only to be checked every 4 months or less frequently.
For multiple-groove pulleys, all V-belts must be replaced if any one V-belt
requires replacing!
The drive motor of the KG 40-100 Gigant is fixed on a rocker. To tension the V-
belt, undo the locknut of the tensioning screw, tighten the tensioning nut until
the correct pulley tension has been achieved and retighten the locknut.
The drive motor of KG 160-400 is arranged to slide on rectangular profiles. To
tension the V-belt, undo the fastening screws of the rectangular profiles and
loosen the locknuts on the tension screws. Adjust the tension screws until the
correct belt tension is achieved, observing at the same time the correct
alignment of the pulley. Tighten the locknuts and fastening screws.
Correct V-belt tensioning:
After tensioning, the central point of the V-belt between the motor and the fan
shaft should give way by approx. 15 mm when depressing with a thumb.
Check alignment of the pulleys.
These units should be periodically checked for dirt and cleaned, when necessary.
Clean the heat exchangers by:
- Vacuuming
- Blowing out with compressed air
- Spraying with water or steam
Air/water/steam pressure used for cleaning may not exceed 5 bar!
Caution
Check condensate drain.
Open, clean and refill drain trap.
Clean drop eliminator profiles with standard limescale-removing agent.
Do not oil the flap shafts!
Clean with compressed air, otherwise maintenance-free.
Gigant