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POWER BOOST SOLENOID VALVE (SG) HARNESS TEST
System Functional Schematic (1 of 6)

Technical Manual For Hydraulic Excavator Model 330Lcr 1
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TM 5-3805-281-24-1
Tests
Indicator light must come ON indicating there is
continuity in the wiring harness and there is a signal
from engine and pump controller.
5. Push the power boost switch on the right control lever.
The brightness of indicator light must increase slightly.
If light goes OUT or brightness does not increase
slightly, check wiring harnesses, solenoid coil, and
power boost switch. (See procedure in Group
9015-15.)
CED,TX08227,3027
1918MAR982/2
9025
25
52
6-199


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