Model 9600/9700 Swing-Reach ® Lift Truck

Section 8.Theory of Operation

Pinout Matrix

166JPT14-4BUS0– Negative component of the digital communications between the TM, TPA, LPA, and GM.

167JPT14-5+12VP +12V supply to the Brake Deadman switch (S2).

168JPT14-6RELAY_ENABLEControl path for K1, K2, K3, and K4 on the Fuse/Relay Card. When S1 closes, all relays are energized simultaneously during SelfTest if the voltage at BATTERY_SENSE_IN is between 44 and 52V.

169JPT14-8B–F

170JPT14-9B–F

171JPT14-10DGND

172JPT14-11BUS0+

2.3VTMTPA, LPA, GM

10.1 to 13VTMS2

Relays OFF: B+ ON: 12V

TMK1, K2, K3, K4

This connects B–F on the TM to TP4 (B–) through FU6 on the Fuse/Relay Card. These B– provide the return for everything not using DGND or AGND as reference. Measure B+ at TP1 to verify connections. Then check for <0.5V wrt TP4.

Fuse/Relay Card TM

This connects B–F on the TM to TP4 (B–) through FU6 on the Fuse/Relay Card. These B– provide the return for everything not using DGND or AGND as reference.

This connects DGND on the TM to TP4 (B–) through FU6 on the Fuse/Relay Card. This is the reference for all circuits on the truck that reference DGND.

Positive component of the digital communications between the TM, TPA, LPA, and GM.

173JPT14-12B+KEY B+ that is switched by the Key switch (S1) and is used to power functions on the TM that are initiated after S1 closes and are not affected by the EPO. This includes the TM power supplies, the operation of the microprocessor, and execution of the firmware.

174JPT14-13B+K2 B+ provided to the TM when the K2 Relay tips are closed. They are de-energized when the EPO is open or key switch is OFF.

175JPT14-14B+K2 B+ provided to the TM when the K2 Relay tips are closed. They are de-energized when the EPO is open or key switch is OFF.

176JPT18-1LHC

Fuse/Relay Card TM

Fuse/Relay Card TM

2.3VTMTPA, LA, GM

S1 Closed: B+

Open: <0.5V

S1TM

B+ K2 RelayTM

B+ K2 RelayTM

Negative path for the Load Handler Contactor (LHC) coil. Coil Deenergized: B+ Coil

Energized: Approx 24V

Fuse/Relay Card LHC Contactor

Publication: 1089040, Issued: 08 Apr 2016 8-31