DYNAMICS GROUP Dings 6-60000-535 Gebruiksaanwijzing - Pagina 7

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Armature Plate Assembly Replacement
Caution: Load to be removed or blocked. Brake will be
inoperative during this procedure.
If you replace the magnet assembly, it may be necessary to
replace the armature plate assembly. If it is badly deformed,
it will be difficult to make the magnet quiet.
1.
To replace, remove operator assembly (15) from
brake. See "Friction Disc Replacement Steps 1-3"
on page 6.
2.
Remove nuts (15T), springs (15S), and carriage bolts
(15R). This will allow the armature plate assembly
(15E) to be removed from magnet bracket.
2.
Reassemble new armature plate assembly to magnet
bracket (15C) using items (15R), (15S) and (15T).
Reassemble operator assembly to brake bracket. Set
magnet air gap "A" and set torque springs (15S) to
1" as shown in Fig. 6 and 7.
Pivot Stud Adjustment
Caution: Load to be removed or blocked. Brake will be
inoperative during this procedure.
This adjustment is made at the factory and may be required
when replacing the magnet assembly or the armature plate
assembly.
The purpose is to regulate the height of the armature plate so
that when the magnet is energized, the armature is parallel
with it. This is required so that the magnet will be quiet.
NOTE: Cover must be removed to make this adjustment.
1.
To adjust: Hold nut (19) which is adjacent to washer
(18) and loosen the other nut (19) and remove it
from the stud.
2.
Energize the magnet and turn remaining nut (19)
counterclockwise slowly until the magnet becomes
noisy. Turn magnet on and off several times until
you find the position where the magnet first becomes
quiet. At this point turn nut (19) 1/3 turn (two flats)
in a clockwise position. Hold nut in this position and
turn magnet on and off to make sure the magnet does
not become noisy.
3.
Holding this nut in place, screw on other nut and
tighten it against the nut you are holding. Tighten
firmly.
4.
Operate the manual release. If the release does not
operate properly, see "Manual Release Adjustment."
Manual Release Adjustment
Caution: Load to be removed or blocked. Brake will be
inoperative during this procedure.
The manual release (3) may require adjustment after
replacing the operator assembly (15), magnet (15A), or
armature plate assembly (15E). It also may be required if
adjustments are made on the pivot stud nuts (19).
The release is working properly if:
a) You turn release knob clockwise to stop and the
brake is released;
b) The release knob returns to its normal position
automatically when power is applied to the magnet.
NOTE: Cover must be removed to make this adjustment.
1.
To adjust: Set air gap "A" as described under "Wear
Adjustment" on page 5.
2.
If the brake does not release, turn adjusting screw (5)
counterclockwise 1/4 turn and try again.
3.
If the release knob (3) does not return to its normal
position automatically, turn screw (5) clockwise 1/4 turn
and try again.
NOTE: You may have to repeat Steps 2 or 3 to get
the release to operate properly.
It is important that the release knob returns to its
normal position automatically when power is applied
to the magnet.
Manual Release Assembly
Refer to Fig. 9.
1.
Place a small amount of high temperature Neverseize
grease around o-ring (24) located on release knob (3) and
in release hole located at the top of bracket (2).
2.
Place shaft of release knob (3) through hole in bracket
(2). Slide return spring (4) over shaft; straight leg of
spring should enter shaft first with leg in the position
shown.
3.
Slip spring (6) over screw (5) and install in tapped hole
in release shaft. Screw in until it stops. Make sure spring
(4) is not caught under spring (6).
4.
Engage bent end of spring (4) over spring (6) as shown.
Pull it over with a needle nose pliers or screwdriver.
5.
Adjust release per "Manual Release Adjustment" section.
Figure 9
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