AT&T Bell System Plant Series Adjusting Manual

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I
BELL SYSTEM PRACTICES
Plant Series
SECTION 075-180-703
Issue 3, June 1968
AT& TCo Standard
VACUUM CLEANERS
KS- 143 77 TYPE
REQUIREMENTS AND ADJUSTING PROCEDURES
1. GENERAL
1 .01
This section covers the portable KS-14377
type vacuum cleaner (Fig.
1).
1.02
This section is reissued to add the KS-14377
L5 and L6 vacuum cleaners, to revise list
of gauges and materials, and to add 2.04 and 3.04.
1.03
•The KS-14377 L5 vacuum cleaner replaces
the L1 and L3. The KS-14377 L6 vacuum
cleaner replaces the L2 and L4. The replaced
vacuum cleaners are rated manufacture discontinued.
It is possible to update the older cleaners to the
equivalent of the newer as follows:
SWITCH
(a)
Updating the KS-14377 Ll to L3 and the
KS-14377 L2 to L4. This conversion makes
it possible to use a disposable paper filter in
addition to the felt-cambric filter. Use of the
paper filter requires a rubber baffle inside the
dust container at the hose connection. The baffle
is part of the KS-14377 L25 conversion kit.
Pamphlet No. 6013, supplied with the kit, gives
the necessary information for converting the
KS-14377 L1 to L3 and the KS-14377 L2 to L4.
(b)
Updating the KS-14377 L3 to L5 and the
KS-14377 L4 to L6. In order to provide
for grounding the KS-14377 vacuum cleaners
the KS-7586, 25-foot, 2-wire cord equipped with
....---DUST CONTAINER
Fig. 1-KS-14377 Type Vacuum Cleaner
©
American Telephone and Telegraph Company. 196g
Printed in C.S.A. Page 1