Honeywell SYA14 Series, Manual

Page: 452 / 737

MICRO SWITCH Maintained Cable Pull limit Switch
PK 8156 0
Step 2 -Attach cable to switch:
l
Ensure cable is fully seated and tightly fitted in
thimble groove.
l
Attach using two U-bolt clamps. U-bolt clamps
should be installed as close as possible to
thimble.
l
Tighten U-bolts to 4.5 in.-lb. (0,51 N-m) for 1/8 in.
(3,18 mm) cable and 7.5 in.-lb. (0,85 N-m) for
3/16 in. (4,76 mm) cable.
Step 3 - Install cable supports:
l
Install a cable support as close as practical to
end of shaft without interfering with switch
operation.
l
If cable tension adjusting turnbuckle is in mid-
span of cable, the first cable support should be in
line with, and no further than, 12 in. (30 cm) from
the end (eye) of the shaft. If adjusting turnbuckle
is attached directly to shaft eye, this distance
may be increased to 18 in. (46 cm).
l
Support cable at intervals no greater than 8 ft.
(2,4 m).
Figure 5: Single Head Switch with Turnbuckle
REQUIRED ENDSPRING AND TURNBUCKLE
INSTALLATION
Step 1 - Ensure you have the following
(Figures
5 and 6):
l
Endspring, turnbuckle, jam nuts (supplied with
switch).
l
Thimbles, U-bolt clamps.
Step 2 - Install endspring:
Reduces effects of
ambient temperature fluctuations and provides a
measure of protection against excessive force
being applied to cable.
l
Install an endspring within cable span, preferably
at end of cable opposite switch (see Actuating
Cable Installation, Step 2).
Step 3 - Install turnbuckle:
Ensures proper cable
tension.
IMPROPER INSTALLATION
Do NOT install turnbuckle too closely to cable
supports or other barriers that may hinder proper
operation. Failure to comply with these instructions
could result in death or serious injury.
l
Install within cable span in same manner as
endspring. Use jam nuts to maintain adjustment.
Figure 6: Duplex Head Switch with Turnbuckle
For application help: call 1-800-537-6945 Honeywell
l
MICRO SWITCH Sensing and Control 3