AMETEK 1999 Semelex II Safetimeter User Manual
1025D Foot & Palm Switch Service Bulletin
Mushroom Button - Foot or Palm Operation
1025 Series
Description
This foot and palm-operated
switch may be equipped with
either one or two precision unit
switches. Each precision switch
has one single pole double break
double throw cir cuit.
Installation
This switch may be mounted in
any convenient position. Remove
the “button” cover (item 7) by
removing the cen ter nameplate
screw and lockwasher (item 9),
and washer (item 8). Pull the
button and diaphragm off the
switch case. The precision unit
switch has letters “A” and “B” on
the molding. Refer to the circuit
symbols shown on the label inside
the cover. The symbols show the
foot switch in the normal position.
When the button is depressed,
the “A” circuit is closed. The wiring
connections within each pre ci sion
unit switch must be the same
polarity.
Reassemble the button cover so
that the rib openings in the in side
center of the cover engage the
cross bar. De press and rotate
the cover back and forth slightly
to help the diaphragm seat itself
on the rim of the case. Install
the felt washer, lockwasher, and
nameplate screw.
Lubrication
The mechanical parts were
lubricated at the factory when
as sem bled, and it should not be
necessary to relubricate.
Renewal Parts
When ordering Renewal Parts,
give ref er ence to this Form
No. 532, Item No., De scrip tion,
Quantity, Part No. and the
com plete Number stamped on the
nameplate.
Renewal Parts
Item No. Description of Part No. Req. Part No.
1 Screw Rd Hd Mach 6-32 X 1/4” W / Sems Washer 2 04560054
2a Switch - SPDT As Req. 19501BADO
2b Switch - DPDT As Req. 19504BADO
3 Insulator 2 M0652000
4 Insulator (Required when two switches are used) 1 S0070100
5 Screw Pan Hd Mach 6-32 X 5/8” W / Sems Washer As Req. 04560058
6 Diaphragm 1 P0078600
7 Button 1 A0054700
8 Felt Washer 1 S0069900
9 Indicating plate and cover screw As Req.
STOP “ NP0097002
START “ NP0097001
BLANK PLATE “ NP0097000
10 Plate and Post Assembly 1 SD0316600
11 Case 1 A0054600
12 Spring 1 04581005
13 Hex Nut #10-32 2 04562017
Lock washer #10 2 04563031
14 Spring Plate 1 SD0316700
15 Plate and Bushing Assembly 1 SD0317000
1080 N. Crooks Road, Clawson, MI 48017-1097
Phone: 248.435.0700 Toll Free: 800.635.0289 Fax: 248.435.8120 www.AMETEKAPT.com
Copyright 2004 by AMETEK AUTOMATION & PROCESS TECHNOLOGIES. All Rights Reserved. Made in the USA
1025D Foot & Palm Switch
Dimension Drawing
4.81
2.25
5.00
4.00
SPDT
SINGLE POLE
DOUBLE THROW
B
0.28 dia.
4PLACES
3.34
FILE E56660
CCN NKCR2
OSHA REGULATIONS (STANDARDS 29 CFR - 1910)
3/4-14 NPT
DPDT
DOUBLE POLE
DOUBLE THROW
OPERATOR WARNING
THIS FOOT SWITCH SHOULD ONLY BE
USED WHERE POINT OF OPERATION
GUARDING DEVICES HAVE BEEN
PROPERLY INSTALLED SO THAT IT IS
IMPOSSIBLE FOR THE OPERATOR'S
HANDS OR FINGERS TO REMAIN WITHIN
THE POINT OF OPERATION DURING
THE ACTUAL MACHINE CYCLE.
NP-0096900
1A 1B 2A 2B
A
B
A
1B
1A
CONTACT RATINGS AMPERES CONTACT RATINGS AMPERES
AC Pilot Duty
Volts Make Break
DC Pilot Duty
Volts Make/Break
110 40 15 115 0.25
220 20 10 230 0.10
440 10 6 600 ......
600 8 5
AC Pilot Duty
Volts Make Break
115 30 3 115 0.2
230 15 1.5 230 0.1
440 7.5 .75 600 ......
575 6 .60
DC Pilot Duty
Volts Make/Break
APPLICATION NOTE
1) The N.O. and N.C. contacts of the SPDT snap switch must be used on circuits of the same polarity.
2) The DPDT snap switch has (2) two electrically separate poles, which can be used on opposite polarities.
The N.O. and N.C. circuit of each pole of the DPDT snap switch, however, must be used on the same polarity.
2B
2A
1080 N. Crooks Road, Clawson, MI 48017-1097
Phone: 248.435.0700 Toll Free: 800.635.0289 Fax: 248.435.8120 www.AMETEKAPT.com
Copyright 2004 by AMETEK AUTOMATION & PROCESS TECHNOLOGIES. All Rights Reserved. Made in the USA.
Form 532A
1025D.I2R
2/05.Z75
2M
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