Beck 42-107 Replacement Instructions

80-4284-12
Rev. 01
REPLACEMENT INSTRUCTIONS
REPLACEMENT KIT P/N 12-8064-12

PURPOSE

The purpose of these instructions is to provide
the field 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 identification.
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 film of gasket adhesive (Scotch™ 847
or equivalent) to the mating face of the drive.
E L E C T R I C A C T U A T O R S F O R I N D U S T R I A L P R O C E S S C O N T R O L
CONTROL END FUSE
9. Firmly press the new gasket into place and allow
10. Connect power to the drive.
11. Modulate the Demand signal to run the drive
12. Modulate the signal to several intermediate
13. If the drive responds correctly, reinstall the
14. If the drive does not respond correctly, refer to
MODELS 42-107
time for the adhesive to set before continuing.
through its full range of motion. Verify the correct
drive response.
levels and note if the drive attains the proper
position.
control end cover, tighten the (4) 5/16-18 hex
head captive screws to 10 lb-ft torque, and return
the drive to service.
the troubleshooting and calibration sections of
Beck Instruction Manual 80-0042-00.
42-105