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2. For models VB-004 to VB-110, remove the plug at
the bottom of the case and check the gap with a
feeler gage. Remove impeller and adjust shims if
necessary to change gap. When adjustments and
checks are complete, replace plug tightly to prevent
air leakage.
a. For models VB-001 to VB-003, check gap
anywhere along the periphery of the case to
impeller mating surface.
3. Fasten impellers using lockwashers and locknuts.
Torque locknut to recommended torque values in
Table 3. Bend a lockwasher tab down into a lock-
washer slot.
4. Reattach the impeller cover.
Catalog No.
VB001, VB001S, VB002
VB002S, VB003, VB003S
VB004, VB004S
VB007, VB007S
VB019, VB019S
VB030, VB030S
VB037, VB037S
VB055
VB075
VB110
Table 3 Locknut Torque
The Spencer Turbine Company 600 Day Hill Road, Windsor, CT 06095-4706 TEL 800-232-4321
6
V. Vortex Blower Data
Pages 7 through 17 present information about the
various blower models. This information is important
in understanding your blower's performance, in using
the blower in the proper operating range, and in ordering
parts that might be needed.
A. Assembly Diagrams
At the top of each page is an assembly diagram of the
unit. Items are identified by circled numbers around the
diagram. Above each diagram is the gap specification.
B. Parts Lists
At the lower left of each diagram is a table giving the
item number (shown on the Assembly Diagram), the
Recommended
Part No. for that item and the corresponding part
Torque (Ft-Lb)
description. In ordering parts, provide the model
number, the part number and the description.
22
C. Performance Curves
31
At the lower right of each diagram are performance
curves for 50Hz and 60Hz operation. The curves
36
present the following information:
36
The upper line of each curve is pressure performance
44
while the lower line is vacuum performance. The
44
dashed portion at the left end of some of the curves
indicates an intermittent-only operating area. See
77
Operation Section on page 5.
90
D. Estimated Acoustical Noise Level at 1.5M, 60Hz
90
Model
dba
VB001S
62
VB001
61
VB002S
61
VB002
61
VB003S
66
VB003
66
VB004S
63
VB004
63
VB007S
70
VB007
64
VB019S
70
VB019
73
VB030S
71
VB030
73
VB037S
74
VB037
76
VB055
82
VB075
81
VB110
80
860-688-8361
FAX 860-688-0098
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