Beck, R&J Automobile Parts 14-10 Benutzerhandbuch

34

 

Complete switch assemblies may be replaced.  

It is not possible to replace individual switches.  To 
replace switch assemblies, remove the top cover 
(15/16” bolt head).  Remove the #6-32 socket 
head cap screws holding the switch assembly to 
the plate.    
 

Transfer the wires one at a time to the 

replacement assembly using the push-on lugs 
provided.  Install the replacement assembly and 
note that it rotates around one screw to permit 
an adjustment of the cam-to-roller spacing and 
switch operating point.  To properly set the switch, 
use a .030” shim between the cam and switch 
lever and loosely position the switch assembly so 
that the switch is just actuated.  The switch lever 
should be on the low or minimum radius portion 
of the cam when setting the switches.  DO NOT 
overstress the switch lever.  Tighten both screws 
to 10 Ib-in torque and remove the shim.  When 
properly adjusted, the switch lever should remain 
in contact with the cam throughout the control 
drive travel.

 

It is possible to add up to four switches to 

a control drive in the field.  Consult the factory, 
giving the control drive model and serial number 
so that a correct list of parts required may be 
supplied to you.
 

Remove the top cover (15/16” bolt head).  

Install wiring onto the switch push-on lugs and 
route the wires into the control drive terminal 
area.  Remove the terminal cover and solder 
wires to the underside of the terminal assembly 
according to the wiring diagram included with 
the new switch assembly.  Install the new switch 
assembly and adjust according to the instructions 
above.  See Table 5, page 40, for switch assembly 
part numbers.

 

In normal service, the SLM friction surface 

will last for five to ten years.  Faster rates of wear 
can occur in any drive operating near its rated 
thrust and with a frequency of operation greater 
than one per minute on a 24 hour schedule. The 
following procedure can be used to determine 
the amount of wear life remaining on the friction 
surface.  

MAINTENANCE

 

Turn the Handswitch to STOP.  Carefully turn 

the Handwheel back and forth.  If there is free 
play in the Handwheel (up to one tenth of a full 
Handwheel rotation) the SLM has sufficient wear 
life.  If there is no free play in the Handwheel, 
the drive may not hold position and the friction 
surface may need to be replaced—contact the 
factory for details.
 

Damage to the SLM may require the SLM 

Rebuild Kit shown in Table 4, below.  The SLM 
Rebuild Kit consists of a spring, spring pin, thrust 
bearing, pinion, steel balls, locking disc, steel 
shims, control motor gasket, terminal joints, and 
instruction sheet.
 

See Figure 12, below, for identification of 

typical SLM components.