Daewoo Solar 340LC-V, Shop Manual

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S0202110K
Page 21
Specifications for Solar 340LC-V
CYLINDER PERFORMANCE TESTS
NOTE: All tests are performed with standard boom, arm and bucket configuration. The bucket
should be empty.
Boom Cylinders Test
The starting points for the test are with the boom and arm extended away from the excavator, and the
bucket curled inward. The arm cylinder should be fully retracted; boom and bucket cylinders must be
extended. Test movement in both directions, several times, and average results for both Standard Mode
and Power Mode.
Arm Cylinder Test
Start with the boom up and the arm cylinder fully retracted. Test movement in both directions several times,
between the "crowd" and "dump" positions, and average the results of both tests, in both standard and
extra-duty power modes.
Bucket Cylinder Test
Start with the boom up and the teeth of the bucket hanging vertically, 500 mm (1-1/2’ - 2’) above the
ground. Dump and crowd the bucket several times, and average results, for both standard and extra-duty
power modes.
Hydraulic Cylinder Natural Drop Test
To check boom and arm cylinder tightness against the specified performance standard for new cylinders,
put a full load of dirt in the bucket and move the attachment cylinders so that the arm cylinder is extended
20 - 50 mm (1" - 2") and boom cylinders are retracted the same amount, 20 - 50 mm (1" - 2"). The top of
the bucket should be approximately 2 m (6' - 7') off the ground.
Turn off the engine and measure cylinder drop after 5 minutes. Bucket cylinder should not show more than
40 mm (1.57") change, while the arm and boom cylinders should not fall more than 10 mm (0.39").
Travel Motor Jack-up Test
Test travel motor operation on each side by painting or chalking a mark on one crawler shoe, with a
corresponding mark on the travel frame. Use the attachment to jack up one side of the machine and
operate the raised travel motor. Record the number of seconds it takes the crawler shoe to make 3 full
rotations, during both high speed and low speed operation.
OPERATION STANDARD MODE POWER MODE
Boom Up 3.1 - 3.9 seconds 3.0 - 3.8 seconds
Boom Down 2.6 - 3.2 seconds 2.6 - 3.1 seconds
Arm Dump 3.2 - 3.8 seconds 3.0 - 3.6 seconds
Arm Crowd 4.5 - 5.3 seconds 4.4 - 5.2 seconds
Bucket Dump 2.8 - 3.4 seconds 2.8 - 3.4 seconds
Bucket Crowd 3.4 - 4.2 seconds 3.4 - 4.2 seconds
OPERATION STANDARD MODE POWER MODE
High Speed 22.3 - 25.3 seconds 22.3 - 25.3 seconds
Low Speed 33.7 - 37.7 seconds 33.7 - 37.7 seconds