Dings 70 Series Instructions Manual

IMPORTANT
Read this bulletin carefully before installing or operating
this brake. Failure to comply with these instructions
cancels all warranties since the safety of the unit may be
endangered by improper installation or operating
procedures.
WARNING
Brake performance and features must be carefully
matched to the requirements of the application.
Consideration must be given to torque requirements,
especially where an overhauling condition exists, as
well as thermal capacity, ambient temperature,
atmospheric explosion hazards, type of enclosure and
any other unusual conditions.
Improper selection and installation of a brake and/or
lack of maintenance may cause brake failure which
could result in damage to property and/or injury to
personnel.
If injury to personnel could be caused by brake
failure, additional means must be provided to insure
safety of personnel.
Do not operate manual release or energize brake coil
before installation, in order to preserve pre­alignment
of rotating discs for ease of installation.
4740 WEST ELECTRIC AVENUE Ÿ MILWAUKEE, WI 53219 Ÿ (414) 672­7830 Ÿ FAX (414) 672­5354
DESCRIPTION
This brake is direct acting, electromagnetically released
and spring set. It uses rotating and stationary disc
contact to supply positive braking action. It retains
quick release and setting capabilities at al times
Simplicity of design has reduced maintenance to an
absolute minimum. As with any electromechanical
equipment, however, periodic inspection and adjustment
will assure optimum performance. As the friction disc
wears, the magnet gap will increase. The magnet gap
should be checked periodically and adjusted when
necessary.
INSTALLATION
Refer to Figures 3 & 5, Tables 1, 2 & 4
Figure 1 illustrates Diract brakes with a standard manual
release. This release consists of two rods visible thru the
cover. An optional release, the Mark II, has a single
lever as shown in Figure 4.
1. Remove hub (1) from brake and position on motor
shaft with key according to dimension "N".
Stamped part number on hub should face away from
motor. Tighten hub set screws with 12 ft. lbs.
torque. On Mark II release models, motor shaft
should not extend beyond hub.
2. Remove cover screws (24) and cover (23), plus "O"
ring (28) and gasket (32) on enclosed housing
models. On Mark II models, move release lever to
horizontal position. Remove cover.
3. Place brake on motor, guiding discs on hub. On
Mark II models, the release lever should hang down.
The release mechanism is reset by gravity.
4. Bolt brake to motor "C" face with four socket head
cap screws. See Tables 1 and 2, and Figure 3 for
screw size.
5. Connect coil leads per appropriate wiring diagram in
Figure 2 and replace cover.
­ 1 ­
BULLETIN NO. BK4603
DATE 8/94
DIRACT BRAKES
70 & 80 SERIES
INSTRUCTIONS