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MONITOR CONTROLLER AND DISPLAY CIRCUIT DIAGNOSTIC PROCEDURES - Continued
ENGINE AND PUMP CONTROLLER CIRCUIT THEORY OF OPERATION

Technical Manual For Hydraulic Excavator Model 330Lcr 1
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TM 5-3805-281-24-1
Sub-System Diagnostics
ENGINE AND PUMP CONTROLLER CIRCUIT
OPERATIONAL INFORMATION
The following conditions must be met for the circuit to
function:
Key switch ON and voltage present at the following:
Engine and pump controller connector pins B7, D1, D2,
A1, and A13
Relay K10 terminal 1
9015
15
68
CED,TX14795,4140
1922DEC981/1
4-136


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