Specifications

I & M BULLETIN
CMCCU-004
BASIC CONTROLLER
Page 4 of 4
WARNING: The controller has been
pre-programmed at PT Tech per the
customer’s specifications. Failure to
understand the specified operating
parameters and conditions prior to
initial startup and operation may result
in unexpected results and/or possible
damage to vital HPTO components.
Contact PT Tech prior to initial startup
to prevent possible injury and/or death.
CONTROLLER FUNCTIONS
Prior to initial startup of the system, it is
important that the operator understand the
following operational characteristics of the
HPTO Clutch Controller.
IMPORTANT: The controller may not
function properly if it receives a battery
supply voltage below 8 volts DC. Insure
that the machine battery is fully charged
and provides 8+ volts while the engine
is cranking.
The pre-programmed setting of the
controller determines how the HPTO unit
will function during startup. The following
information describes the controller
functions:
Power LED Indicator
The “Power LED” illuminates to notify the
operator that the controller is receiving
switched power from the engine ignition
switch. See sketch below.
IMPORTANT: The engine ignition switch
should be sending power to the
controller in all switched positions
except when the engine ignition switch
is in the off position.
Engine Speed Detected LED Indicator
When the engine is running, the “ENGINE
SPEED DETECTED” LED should be
illuminated. See sketch below. This
indicates that the controller is receiving a
good signal from the speed pickup
mounted at the bottom of the HPTO bell
housing.
Clutch Engagement
To engage the clutch, the
“Engage/Disengage Button” must
be pressed for 3 seconds. Once the
“CLUTCH ENGAGED” symbol illuminates,
the button can be released. The controller
will begin the engagement of the clutch
and perform a series of “bumps” to bring
the driven equipment up to engine speed.
Power LED
ENGINE SPEED DETECTED