Water Temperature Sending Unit

TM 5-4210-233-14&P-1

4-138. ENGNE SENDING UNITS - Continued

b. Water Temperature Sending Unit.

(1) Testing.

(a) Run main engine and monitor water temperature

gauge on pump panel and in cab. Each gauge is

supplied from a different sender.

(b) If no temperature is recorded on pump panel

gauge, replace gauge assembly on pump panel

ground the S terminal on gauge. If gauge does

not register, replace gauge.

(d) If gauge registers, either sending unit or wire is at f

(e) To check wire for continuity, see Wiring Diagrams

(Appendix H), to replace sending unit,

see para (a) below.

(2) Removal.

(a) Tag and disconnect wires (1) from sending unit (2).

(b) Remove sending unit (2) from thermostat housing (3)

(3) Installation.

(a) Install new sending unit (2) in thermostat housing (3).

(b) Connect wires (1) to sending unit (2).

4-404