Dane Technologies, Inc.
QuicKART 2000 Series
Service Manual
7105 Northland Terrace, Minneapolis, MN 55428 / 888-544-7779 / 763-544-7779 / Fax 763-544-4234
www.danetechnologies.com
970-011 Rev. 3/1/06
73
QK-2000 Drive Motor Brake Assembly Test
Service Bulletin — #985-008
May 1999
There are a pair of white and black wires that connect to the electrical brake assemble
which is mounted to the back side of the drive motor. These four wires are terminated
with a four-pin plug and are inserted into a matching receptacle on the junction box.
The two black wires attach to the magnetic brake release coil and the two white wires
are connected to a micro-switch, which tells the electronics if the brake release lever is
pulled.
Testing either the magnetic brake coil or the micro-switch is as follows:
Pull out the four-pin plug from the junction box. The resistance between pins 1 and 2
should measure about 63 ohms. If the resistance is well above this value (basically no
continuity) or very low (a few ohms) the coil has been damaged.
The brake is released when 36 volts are applied across this coil. Once the brake has
been released the 36 volts is dropped to about 20 volts which is more than enough
voltage to keep the brake coil functional yet not draw as much current. This brake
release, or engagement, can be heard as a clicking sound when the throttle is turned on
or off. To measure the voltage across the coil, lift the QK-2000 off of the drive wheels
and measure DC voltage across pins 1 & 2 with all plugs connected.
The two white wires are connected to a small micro-switch mounted on the motor's
brake assembly. It detects the position of the manual brake release lever. This lever is
a mechanical brake release, which allows the machine to be pushed manually. The
machine will not function electrically if the lever is pulled out. Normal operation requires
this lever to be pushed "in". The white wires will show continuity if the switch is closed
(normal operation) and open if the lever is pulled "out."
