Instruction manual

5-12 Modification Comment
Subject
: Adjusting of the brake release lever.
Reason
: Simplify assembly and inspection
The former instructions regarding the adjustment
of the distance “b” (Figure 530) for the brake
release lever “B” in (Figure 530) “with the brake
opened” were based on an internal production
instructions of the manufacturer by means of a
special tool.
After discussion with the manufacturer the
procedure can be simplified by checking the
distance “b” (Figure 530) “with the brake closed”;
in consequence the manufacturer’s value of
0.039” [1mm] must be reduced by the air gap (a)
0.012” [0.3mm], which gives the new checking
dimension of 0.028” [0.7mm].
5-13 Assembly and Adjusting
Fix the new brake to the motor and connect it into
the control box.
Check the air gap (a) = 0.012” [0.3mm] around
the brake with a feeler gauge - if necessary,
adjust by means of set screws “A” (See Section
5-3).
When assembling a new brake check adjustment
of brake release lever “B” (See Section 5-7).
With the brake closed the distance (b) between
anchor disk “C” and washers “D” must be 0.028”
[0.7mm]. If necessary, adjust symmetrically on
both sides by means of screws “E”.
39
WARNING
The adjustment of the brake release lever must not
be changed afterwards, even in case of an air gap (a)
readjustment, as security is adversely affected.
Figure 530