Lennox LCH036 Installation Instructions Manual page 65

TO INCREASE BELT TENSION
1- Loosen four bolts securing motor mounting base
to frame.
2- Turn adjusting bolt to the right, or clockwise, to
move the motor away from the blower housing.
IMPORTANT - Gap between end of frame and motor
mounting base should be equal at both ends, i.e. par­
allel along gap.
3- Tighten four bolts securing motor mounting base
to frame.
4- Relieve tension on two adjusting bolts.
BELT ADJUSTING BOLTS
- TURN CLOCKWISE
TO TIGHTEN BELT
GAP BETWEEN
EDGES SHOULD BE
PARALLEL ON BOTH
ENDS BEFORE
TIGHTENING MOTOR
MOUNTING BASE IN
PLACE
REMOVE TWO SCREWS
TO COMPLETELY SLIDE
BLOWER OUT OF UNIT
BELT DRIVE BLOWER ASSEMBLY WITH TENSIONER (VIEW SHOWN WITHOUT BELT)
TO INCREASE OR
DECREASE BELT
TENSION, REFER TO
INSTALLATION LABEL
TO COMPLETELY REMOVE
BLOWER ASSEMBLY FROM
UNIT, TWO ADDITIONAL
SCREWS MUST BE REMOVED
BELT DRIVE BLOWER ASSEMBLY
MOTOR MOUNTING
BASE
REMOVE TWO SCREWS ON EACH
SIDE TO SLIDE FRAME PARTIALLY
OUT OF UNIT FOR SERVICE ACCESS
MOTOR
MOUNTING
BASE
MOTOR
BLOWER
HOUSING
MOTOR
LOOSEN BEFORE
ADJUSTING BELT TENSION
(TWO EACH SIDE)
FIGURE 18
BLOWER
HOUSING
REMOVE TWO SCREWS ON EACH
SIDE TO SLIDE FRAME PARTIALLY
OUT OF UNIT FOR SERVICE ACCESS
FIGURE 19
Page 15
SIDE VIEW
MOTOR
ALLEN
SCREW
PULLEY
BLOWER
FRAME
BLOWER
FRAME
TENSIONER