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REMOVE AND INSTALL CAMSHAFT GEAR-DRIVEN AUXILIARY DRIVE
MEASURE IDLER GEAR END PLAY

Maintenance Manual For Hydraulic Excavator 230Lcr And 230Lcrd With Rock Drill 2
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TM 5-3805-280-24-2
Camshaft, Balancer Shafts and Timing Gear Train
MEASURE CAMSHAFT END PLAY
16
20
Measure camshaft end play.
Camshaft--Specification
End Play .............................................. 0.08--0.23 mm (0.003--0.009 in.)
If end play is excessive, check thrust plate thickness with
camshaft removed. (See MEASURE CAMSHAFT
THRUST PLATE CLEARANCE, later in this group.)
RG,16,DT7503 1914NOV971/1
MEASURE BALANCER SHAFT END PLAY
(4-CYLINDER ENGINES)
Measure balancer shaft end play.
Balancer Shaft--Specification
End Play .............................................. 0.05--0.26 mm (0.002--0.010 in.)
If balancer shaft end play exceeds specifications, check
thrust plate thickness. (See INSPECT BALANCER SHAFT
GEARS AND THRUST PLATES, later in this group.)
RG,16,DT7502 1914NOV971/1
13-252


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