DYNAMICS GROUP Dings 6-63020-545 Manuel d'instructions - Page 6

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Friction Disc Replacement
Caution: Load to be removed or blocked. Brake will be
inoperative during this procedure.
When total wear on a rotating friction disc reaches 1/16",
replace disc. If brake model number has a prefix VO or VU,
see page 8. Numbers in parentheses refer to parts illustrated
in Figure 12.
1.
Removing operator assembly
a.
Disconnect power.
b.
Remove cover.
c.
Remove operator assembly (15) by removing
screws (16), pivot stud (10), washer (18),
bushing (17), and compression spring (11).
NOTE: Item (10) has a hex socket in end of
stud for removal. Do not loosen nuts (19)
on pivot stud (10), or "Pivot Stud
Adjustment" (on page 7) to quiet the
magnet will have to be made again.
2.
Replacing the friction disc
Remove worn rotating discs (13) and stationary discs
(12). Replace worn discs and install new discs in the
same order. Install stabilizer clip (14), if furnished,
on rotating discs prior to installing.
3.
Re-assembly of operator assembly (15)
a.
Turn two screws (15H) counterclockwise
five turns. Place operator assembly onto
brake bracket (2) and install two screws
(16). Replace compression spring (11),
bushing (17), washer (18), and pivot stud
(10) which has the two nuts (19) in place.
Tighten firmly.
b.
Readjust magnet air gap "A" as described
under "Wear Adjustment" on page 5.
c.
Check manual release operation before
completing installation. Adjust per "Manual
Release Adjustment" on page 7 if required.
4.
Completing installation
Replace cover. Tighten cover screws to 5 lb. ft.
torque. Reconnect power.
6
Figure 8
Magnet Assembly Replacement
Caution: Load to be removed or blocked. Brake will be
inoperative during this procedure.
1.
Disconnect power supply.
2.
Remove cover.
3.
Remove two capscrews (15D), magnet assembly
(15A) and shock mount (15B).
4.
Replace with new magnet assembly (15A), making
sure shock mount (15B) is in place. Feed coil lead
wires through hole in back of bracket (15C) as
shown in Fig. 8. Tighten mounting screws (15D)
with 55-60 lb. in. torque.
5.
Place coil lead wires around mounting bracket
(15C) to the same side as the wire outlet position.
Connect leads wires per "Connection of Coil Leads"
and Fig. 5.
6.
Set air gap "A" as described under "Wear
Adjustment" on page 5.
7.
Energize coil. Magnet should be quiet; if not, refer
to "Pivot Stud Adjustment" on page 7.
8.
Check manual release. If it does not operate
properly, adjust as outlined under "Manual Release
Adjustment" on page 8.
9.
Replace cover. Tighten cover screws to 5 lb. ft.
torque. Reconnect power.