PLF SERIES
WALL EXHAUST FAN
M0017_PLF SERIES_02_21_2023
Page 5 of 5
Canarm Ltd. - Corporate Head Office
2157 Parkedale Avenue, PO Box 367
Brockville, Ontario Canada K6V 5V6
Tel: (613) 342-5424 Fax: (613) 342-8437
BELT DRIVE FAN
WARNING
MOTORS ARE EQUIPPED WITH AUTOMATIC OVERLOAD PROTECTION AND
MAY RESTART WITHOUT WARNING. ALWAYS DISCONNECT POWER BEFORE
ATTEMPTING TO SERVICE, OR REMOVING SHUTTER.
ACCESSORIES
Canarm provides a full line of controls from simple on/off thermostats to sophisticated multiple staging controllers and PC based controllers.
Winter covers are available for colder climates where the fan is shut down for the winter. Performance enhancing cones are available for
24" to 36" sizes that boosts air moving performance and efficiency by approximately 10% for PLF36 fans, and 15% for PLF24 fans.
Weather Hoods are available for 12” to 24” models.
Belt drive fans are equipped with an automatic belt tensioner. The rotary tensioner will compensate for any wear or stretching of the belt.
No adjustments should be necessary. Belt will however wear after extensive use. Fan performance will be sacrificed if worn belt is used.
Listen for belt “squeeling” on startup. This would indicate that the belt requires changing or tightening. Tightening can be done by moving
the screw location on the tensioner bracket.
(see figure 4)
(Although we recommend replacing the belt).
Lubrication:
Belt drive fans are provided with bearing blocks that are pre-lubricated & sealed. They have a double contact seal and steel
slinger that prevents most contamination. However, since the bearings are to operate in very damp and dirty conditions, re-lubrication is
recommended. The grease fitting of the unit should be carefully cleaned before use and the grease should be introduced slowly. Under
normal conditions, the bearings only need re-lubrication every 3 years. Nonetheless, we recommend that each bearing receive one pump
from a grease gun (or until fresh grease is pushed out), every time the unit is washed down (especially if detergent is used.)
NOTE:
Use NLGI2 lithium base grease to ensure compatibility with original grease.
CAUTION: Do not use pneumatic grease guns. Slowly introduce grease with manual gun, otherwise bearing seals
will be destroyed.
Arthur Manufacturing Facility
#7686 Concession 16, RR 4
Arthur, Ontario Canada. N0G 1A0
Tel: (519) 848-3910. Fax: (519) 848-3948
www.canarm.com
Figure 4
Adjusting Belt Tensioner
NOTE:
Remove belt before making adjustments.
Remove Bolt
1
3
2
Change screw hole placement. Moving
screw towards belt will increase tension.
Use screw from step 2 as pin location for
tensioner. Reassemble bolt from Step 1.
