Page 31
C-Blower Belt Adjustment
Maximum life and wear can be obtained from belts only if
proper pulley alignment and belt tension are maintained.
This will allow belt to stretch and seat grooves. Make sure
1 -
2 - To increase belt tension -
Slide blower motor downward to tighten the belt. This
increases the distance between the blower motor and
the blower housing.
3 - To loosen belt tension -
Slide blower motor upward to loosen the belt. This
decreases the distance between the blower motor
and the blower housing.
Tighten four bolts securing motor base to the
mounting frame.
PULLEY ALIGNMENT - NO TENSIONER
BELT
BLOWER
PULLEY
MOTOR
PULLEY
NOT ALIGNED
ALIGNED
FIGURE 8
D-Check Belt Tension
Overtensioning belts shortens belt and bearing life. Check
1 -
DEFLECTION 1/64” PER INCH OF SPAN
OR 1.5mm PER 100mm OF SPAN
FORCE
FIGURE 9
2 -
3 -
5 -
A force below these values indicates an underten-
sioned belt. A force above these values indicates an
overtensioned belt.
F-Field-Furnished Blower Drives
component manufacturers numbers.
TABLE 6
Drive No.
DRIVE COMPONENT PART NUMBERS
Motor Pulley Blower Pulley Belts
Browning OEM Browning OEM Browning OEM
Z01 1VP34 X 7/8 31K6901 AK54 X 5/8 A40
Z02 1VP34 X 7/8 31K6901 AK46 X 5/8 A39
Z03 1VP34 X 7/8 31K6901 AK41 X 5/8 A39
Z04 1VP34 X 7/8 31K6901 AK39 X 5/8 A38
Z05 1VP44 X 7/8 AK49 X 5/8 A41
Z06 1VP50 X 7/8 53J1501 AK51 X 5/8 A42
ZAA02 1VP40 X 7/8 79J03 BK80H 100788-03 A53 100245-40
ZAA03 1VP40 X 7/8 79J03 AK59 X 1 31K68 A50 100245-29
ZAA04 1VP44 X 7/8 P-8-1488 AK59 X 1 31K68 AX51 13H01
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