SP002026
Page 23
Specification for DX300LCA
Travel Deviation
To check steering deviation (travel motor balance), use a long
tape or rope, or the edge of an undeviating straight road curb or
other marker to verify side to side travel motor uniformity.
Deviation distance should always be measured at the 20 m (65'
7-1/2") "finish line." Repeat the test in reverse to measure in
both directions, with starting point becoming the finish line, and
vice versa. (Figure 5)
A greater amount of deviation is allowed with the travel control
set for high speed.
Swing Speed and Deceleration Force Test
Swing Speed Test
Extend the bucket cylinder completely and retract the arm
cylinder, as shown in Figure 6, to test swing speed. The lowest
point of the bucket will be approximately 1.5 m (3') off the
ground.
Use paint marks at the same point on the turntable and
undercarriage, or select alternate measuring locations and use a
stopwatch to time 3 full 360° rotations. The time required for 3
revolutions should be between 15.5 and 17.5 seconds in
Standard Mode, 15.5 and 17.5 seconds in Power Mode.
Rate of Travel Max. Distance
High Speed 150 mm (6 in)
Low Speed 150 mm (6 in)
1.5M
FG000468
Figure 6
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