Maintenance - Bell System Practices Plant Series Reference

(4) Connect mounting cord plug to connector on
set panel.
interference with telephone set components.
(5) Align panel of set with mounting screws
furnished with the set.
(6) Position mat on panel and secure using plastic
frame (P-89C260 or P-89C261) from kit of
parts.
The frame furnished with the telephone
Note:
set is not required for this installation.
4.

MAINTENANCE

4.01
Work done on customer's premises should
be limited to replacement of accessible parts
which are available through supply channels; refer
to ordering guide tables.
Early production 1750-type sets were
Note:
equipped with a three piece metal grommet
assembly (Fig. 2).
the metal grommet assembly be replaced when
any maintenance is performed on these sets.
(See Table A, Fig. 2 and 3).
Fig. 2-P-14E894 (MD)
Scanned by Frank Harrell, (Cowboy Frank) Castle Rock, Colorado
BSP 502-706- 100-iOl 1970-03- 03.jpg
•
Dress mouunting cord to avoid
It is recommended that
Grommet- Assembly
4.02
Ringers, handsets, dials, etc. used in these
sets should be maintained in accordance with
section covering the particular item.
4.03
The exterior of these sets should be clean
and not marred or chipped.
mat may be cleaned with a water-dampened KS-2423
or equivalent cloth.
follows:
(1) Grasp mat retainer frame at top, lift upward
and out to release frame from panel of set.
(2) Remove handset from hook of set.
(3) Pull out handset cord to allow working slack.
(4) Remove mat from face of panel.
(5) Remove grommet from mat as shown in
Fig. 3.
(6) Install grommet in new mat by reversing
procedure used in removal.
(7) Position mat on panel and secure using the
mat retainer frame.
4.04
To test the cord reel, pull the handset cord
out to its maximum length.
maintained perpendicular to the panel, the cord
should retract fully.
be removed before making test.
4.05
Replace the cord reel if the cord will not
retract or if the cord is frayed, kinked, or
noisy. Field maintenance of the cord reel or
replacement of the cord is not recommended.
4.06
The ringer volume control should operate
witho11t restriction when the knob is turned.
Replace set if the control mechanism is worn or
defective.
Jan 31,2012 22:25:17
ISS 1, SECTION 502-706-100
The vinyl-faced
Replace defective mat as
With the cord
Any twists in the cord should
Poge 3