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HYDRAULIC PUMP REGULATOR TEST AND ADJUSTMENT--MINIMUM FLOW - Continued
HYDRAULIC PUMP REGULATOR TEST AND ADJUSTMENT--MINIMUM FLOW - Continued

Technical Manual For Hydraulic Excavator Model 330Lcr 1
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TM 5-3805-281-24-1
Tests
7. Disconnect pump control valve pilot line at rear pump
regulator (B) for rear pump or at front pump regulator
(C) for front pump. Install plug (D) in line. Leave the
fitting on regulator open. Lay a shop towel over the
fitting.
8. Run machine as specified.
Engine--Specification
Speed .......................................................................................... 2050 rpm
Work Mode Selector--Specification
Position ........................................................................................ Dig Mode
E Mode Switch--Specification
Position .................................................................................................. Off
HP Mode Switch--Specification
Position .................................................................................................. Off
Auto-Idle Switch--Specification
B--Rear Pump Regulator
C--Front Pump Regulator
Position .................................................................................................. Off
D--7/16-20 M 37 Plug
Propel Speed Switch--Specification
9025
Position ....................................................................... Slow Speed (Turtle)
25
106
9. Raise the left track off ground for rear pump or the
right track for front pump.
10. Actuate propel function to full speed. Record the cycle
time for one revolution.
Continued on next page
CED,TX08227,3141
1928MAY984/5
6-253


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