© Motor City Wash Works, Inc. 48285 Frank, Wixom Michigan 48393 U.S.A.
Phone: 248.313.0272 ▪ Fax: 248. 313.0271
REVISION 2.3 10-07-20
www.motorcitywashworks.com
14
Possible Problems/Remedies
Equipment:
Problem:
Remedy:
Rockerz
Brush(es) does not
rotate.
Check for mechanical
binding stopping
rotation.
Check that motor is
getting rated voltage
or drive is faulted.
Ensure that VFD Hz
reading is ramping
upward.
Separate motor from
gearbox to see if
motor spins freely. If
so, gearbox may be
seized.
Rockerz
Brush arms do not
extend in wash bay.
Check that cylinder is
not leaking.
Check that MAC valve
is de-energizing to
allow air to flow to the
correct port.
Check that MAC valve
is receiving required
power.
Rockerz
Brush arms do not
retract from wash bay.
Check that air cylinder
is not leaking.
Check that MAC valve
is energized allowing
