Beck 42-107 Guide
PURPOSE
The purpose of these instructions is to provide
the eld maintenance technician with a step-by-step
method for replacing the control end fuse on Beck
Group 42, control option 7 and 5 drives.
REQUIRED TOOLS
1/2” socket or wrench
Scotch™ 847 gasket adhesive or equivalent
Torque wrench appropriate for 10 lb-ft
WARNING
Electrical shock hazard—disconnect power
before proceeding. Remove the drive from line
voltage and shut off any external power sources
feeding the auxiliary switches.
PROCEDURE
Refer to Figure 1 for component identication.
1. Remove power from the drive.
2. Remove the control end cover by loosening the
(4) 5/16-18 hex head captive screws.
3. Locate the fuse on the terminal board of the
control end.
4. Use a small screw driver to lift off the cover.
5. Remove and replace the fuse and replace the
cover.
6. Inspect the control end cover gasket and replace,
if necessary. If the gasket is in good condition,
skip to step 10.
7. Clean the mating face on the drive body and
the cover to remove all gasket material and
adhesive. Ensure that the surfaces are free of
defects, such as dents or gouges.
8. Apply a thin lm of gasket adhesive (Scotch™ 847
or equivalent) to the mating face of the drive.
9. Firmly press the new gasket into place and allow
time for the adhesive to set before continuing.
10. Connect power to the drive.
11. Modulate the Demand signal to run the drive
through its full range of motion. Verify the correct
drive response.
12. Modulate the signal to several intermediate
levels and note if the drive attains the proper
position.
13. If the drive responds correctly, reinstall the
control end cover, tighten the (4) 5/16-18 hex
head captive screws to 10 lb-ft torque, and return
the drive to service.
14. If the drive does not respond correctly, refer to
the troubleshooting and calibration sections of
Beck Instruction Manual 80-0042-00.
80-4284-12
Rev. 01
REPLACEMENT INSTRUCTIONS
CONTROL END FUSE
REPLACEMENT KIT P/N 12-8064-12
ELECTRIC ACTUATORS FOR INDUSTRIAL PROCESS CONTROL
MODELS 42-107
42-105
Figure 1
12/08
11 TERRY DRIVE NEWTOWN, PENNSYLVANIA 18940 USA
PHONE: 215-968-4600 FAX: 215-860-6383 www.haroldbeck.com
HAROLD BECK & SONS, INC.
R
Table 1: Control End Fuse
Replacement Kit
Part Number Description
11-1370-10 Fuse, 3A
10-8080-02 Control End Gasket
R4
R3
VR2
R5
VR1
TB1
TB2
22-4001-13
R 2
1 2
1 2
TP2
15141312
TP1
11
1514
3 4
1312
10
5
9
6
3456
11
10
87
9
87
R1
F1
FUSE &
FUSE COVER
TERMINAL BOARD (OPTION 7 SHOWN)
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