Dillon DynaSwitch - Manual (Page 20)

Section 7 Maintenance
7-1
General Instruction
Depending on environmental and working conditions, Cranegard Load
Limit Switches should be inspected periodically, at least every six months.
Cranegard Load Limit Switches should be free from any contact friction of
adjacent wire rope.
Check for frayed wires, damage to the microswitch housing and protective
cover.
Check established operating setting(s). If necessary, the switches should
be reset.
Type BZG1-2RN microswitches are the only authorized parts replace-
ments for Cranegard Load Limit Switches. Attempting to make unautho-
rized repairs to the Cranegard Load Limit Switch automatically voids the
Dillon warranty.
Follow the procedure for the Dynaswitch in section 4-4.
7-2
Mechanical Inspection
7-3
Electrical Inspection
7-4
Switch Setting
7-5
Authorized Parts
Replacement
7-6
Troubleshooting
Dillon
A division of Weigh-Tronix Inc.
1000 Armstrong Dr.
Fairmont, MN 56031 USA
Telephone: 507-238-4461
Facsimile: 507-238-8258
e-mail: [email protected]
www.dillon-force.com
Force Measurement Products & Systems
Weigh Bar ® is a registered trademark of Weigh-Tronix Inc.
11/06/03 DS&CG_U.P65 PN 16947-0010G e2 Printed in USA
6-4
Electrical Wiring
Any time the Dynaswitch is
removed from the machin-
ery and reinstalled, you
must check the switch
operation. Failure to do so
could result in inaccurate
actuation as the calibration
could change.
Micro-switch(es) are S.P.D.T. and have three contacts. One is normally
open, one normally closed, and one is common. Therefore they can make
or break a circuit (start or stop an operation) at a specific set point(s).
To BREAK a circuit at a set point as load increases, select normally closed
and common switch terminals. To MAKE a circuit as load increases, wire
to normally open and common terminals.
To BREAK a circuit at a set point as load decreases, wire to common and
normally open terminals. To MAKE a circuit as load decreases, wire to
common and normally closed terminals.