Class1 TPG Governor - 117685 User Manual

Total Pressure Governor (TPG)

OEM Quick Manual

INSTALLATION

Mount the TPG on the operator’s panel with four #10 screws. The
dimensions in the detail below are in inches [millimeters].

WIRING HARNESS

The main system harness (p/n 117666) is comprised of a pair of
harnesses: the power/communication harness (depicted below in
blue) and the signals harness (depicted below in green).

PRESSURE TRANSDUCER INSTALLATION

Install the pressure transducer (p/n 113557) on the
discharge side of the pump. The pressure connection is a
¼-18 NPT male port. A ‘T’ fitting can be used to share the
pressure gauge outlet on the discharge manifold.

VERIFY ENGINE RPM

Verify proper J1939 CAN connection to the engine’s ECM by
monitoring the RPM display of the TPG while the engine is
running. The display should show accurate RPM
information.

VERIFY INTERLOCKS

The TPG requires OEM provided interlocks THROTTLE READY and PUMP ENGAGED for proper operation. The TPG utilizes backlit text to
indicate interlock status.

Activate the throttle ready interlock. (Apply system power to pin 2 of connector C5).
Verify the THROTTLE READY text below the display illuminates.

► The TPG will operate in RPM mode only and cannot be changed to pressure mode.

Activate the pump engaged interlock. (Apply system power to pin 10 of connector C5).
Verify the PUMP ENGAGED text below the display illuminates.

► The TPG will not operate in any mode without the THROTTLE READY interlock.

Activate the throttle ready and pump engaged interlocks. (Apply system power to pins 2
and 10 of connector C5).
Verify the PUMP ENAGED, OKAY TO PUMP, and THROTTLE READY text below the
display illuminates.

► The TPG will operate in either mode.

For the analog control option, add harness wires (p/n 117683)
depicted above in red.

ZERO CALIBRATE THE PRESSURE TRANSDUCER

The pressure indicated by the TPG may not show ‘0’ when the pump discharge pressure is actually zero due to ambient pressure and altitude at your
locale.

+

3 TIMES

Display shows MENU 04 SECS and begins counting down. Continue holding IDLE and MENU until the display
shows *SETUP MENU* (4 seconds) and then MENU LEVEL 2 (2 seconds).

The display shows the menu item: -SENSOR CAL-.

ONCE

+ HOLD

VERIFY ENGINE CONTROL

Activate the throttle ready and pump engaged interlocks. (Apply system power to pins
2 and 10 of connector C5).
Verify the PUMP ENAGED, OKAY TO PUMP, and THROTTLE READY text below
the display illuminates.

ONCE

ONCE

ONCE

ONCE

Press the INC switch once. The display shows INT:ZERO=XXX.

Press the INC switch and hold. The display shows DIS:LIVE=XXX. Verify the value is between 130 and 155.
Release the INC switch. The display will show DIS:ZERO=XXX.

Press the PRESET switch once. The display shows NEW ZERO=XXX. Verify the value is between 130 and 155.

Press the IDLE switch once. The display shows —EXITMENU— and then restarts normal operation.

Press the MODE switch once. The display shows GOV=PRESSURE.
The PSI indicator is illuminated YELLOW.

Press the MODE switch once. The display shows GOV=THROTTLE.
The RPM indicator is illuminated BLUE.

OR

ONCE

TPG OEM Quick Manual P/N 117685 Rev050208

For detailed operation and troubleshooting consult the full manual (p/n 117684) available from the Class 1 web site

Engine RPM will change when pressing either the INC or DEC switches.

Press the IDLE switch once. The display shows IDLE and the engine RPM will reduce to the idle RPM. The
display then shows RPM XXXX.

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