Craftsman 28906 Professional Shop Manual page 9

CRAFTSMAN
,
When the RMC module is armed and turned-
on: The tractor will operate identically to when
the module is disarmed, except that the operator
will be able to put the transmission in reverse
with the PTO engaged and the cutting deck will
continue to run The operator may put the tractor
into and out of reverse as many times as they
wish without having to re-arm or turn-on the
module again.
To arm the RMC module: the operator must
turn the key switch to the REVERSE CAUTION
MODE (yellow zone), with the parking brake
released. See Figure 7.4.
Figure 7.4
,
,
To re-arm and turn the module ON:
If the key is in REVERSE CAUTION MODE
position, it must be turned to another position
(Normal Run), then returned to REVERSE CAU-
TION MODE. Once re-armed, the module can
be turned-on by pressing orange triangular but-
ton. It will be confirmed that the module is ON by
the illumination of the red LED on the module.
To identify a faulty RMC module: If the RMC
module does not function as described, the RMC
plug test should be the first step in diagnosis.
If the RMC plug test confirms that the safety cir-
cuits (inputs) work as designed, yet the RMC
module does not work properly, the RMC mod-
ule is faulty.
The RMC plug test will give an indication of what
the problem is if it is not a faulty RMC module. If
the problem is identified in a particular circuit,
check the safety switch that is associated with
that circuit. If the switch is good, then the prob-
lem lies within the wiring harness.
NOTE: Like the electronic components found on
most cars, the RMC module requires a fully
charged battery to work properly. If the system
voltage falls below 12 V. an accurate diagnosis
of the RMC module is impossible because the
module will be temporarily disabled by low volt-
age.
To turn the RMC module ON: The module must
first be armed, then the orange triangular button
is depressed, illuminating the red LED indicator
to indicate that it is ON. It is important that the
operator must take two actions to turn the RMC
module ON so that they do not do so inadvert-
ently. See Figure 7.4.
The RMC module will turn-OFF and disarm if:
• The operator moves the key to any posi-
tion other than REVERSE CAUTION
MODE.
The operator sets the parking brake.
If the operator leaves the seat without
setting the parking brake, the engine will
turn-off. The key movement necessary to
re-start the engine will make it necessary
to re-arm and turn-on the RMC module if
the operator wishes to continue with the
ability put the tractor in reverse while the
PTO is running.
6