709
710
712
715
718
HB47T
1630 - 1232
B36
B38
B42
----
----
HB57T
1329 - 1005
B38
B40
B43
----
----
HB67T
1121 - 848
B39
B42
B45
----
----
HB77T
969 - 733
B41
B43
B47
B51
B55
HB87T
854 - 645
B42
B45
B48
B53
B56
HB97T
763 - 577
B45
B47
B50
B55
B58
HB107T
690 - 521
B46
B49
B52
B57
B60
HB117T
629 - 476
B48
B50
B54
B58
B62
HB127T
578 - 437
B50
B52
B56
B60
B63
HB137T
535 - 404
B52
B54
B57
B62
B65
HB157T
466 - 352
B56
B58
B61
----
B69
HB187T
390 - 295
B63
B64
B67
----
----
HB77T
756 - 568
----
----
----
B50
B53
HB87T
667 - 500
----
----
----
B52
B55
HB97T
596 - 447
----
----
----
B54
B57
HB107T
538 - 404
----
----
----
B55
B59
HB117T
491 - 368
----
----
----
B57
B60
HB127T
452 - 339
----
----
----
B59
B62
HB137T
418 - 314
----
----
----
B61
B64
HB157T
364 - 273
----
----
----
----
B68
HB187T
304 - 228
----
----
----
----
----
HB77T
969 - 733
----
----
----
B53
B56
HB87T
854 - 645
----
----
----
B55
B58
HB97T
763 - 577
----
----
----
B57
B60
HB107T
690 - 521
----
----
----
B58
B61
HB117T
629 - 476
----
----
----
B60
B63
HB127T
578 - 437
----
----
----
B62
B65
HB137T
535 - 404
----
----
----
B64
B67
HB157T
466 - 352
----
----
----
----
B70
HB187T
390 - 295
----
----
----
----
----
FOR FRACTIONAL HP APPLICATIONS "4L" BELTS MAY BE SUBSTITUTED BY ADDING 2" TO THE SPECIFIED "B" BELTS. EG. B50 BELT = 4L52.
8400
O.D. 4.15"
182T, 184T
FRAME
(DEDUCT 2"
FOR
56, 143T &
145T
FRAME)
MODEL
715 & 718
143T, 145T
FRAME
Belt Length
Based on
Motor Frame
8325
O.D. 3.25"
143T, 145T
FRAME
1VL 44
O.D. 4.15"
Motor
Pulley Cast
Iron
Blower
Pulley Cast
Iron
RPM
Range
MODEL
709 TO 712
48 FRAME
(ADD 1" FOR
56 FRAME)
BLOWER MODEL
WARNING
EXCESSIVE BELT TENSION IS THE MOST FREQUENT CAUSE OF BEARING WEAR AND RESULTING NOISE.
PROPER BELT TENSION IS CRITICAL FOR QUIET EFFICIENT OPERATION.
Ideal belt tension is the lowest value under which belt slip will not occur at peak load conditions.
PULLEY ALIGNMENT
FIGURE 3
FIGURE 4
700 SERIES
FILTERED FRESH AIR SUPPLY UNITS
700 SERIES_ 06_14_2022
Page 3 of 4
BEARING REPLACEMENT
DRIVE TABLE