Takeuchi TB175W, Руководство по ремонту

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II-19
SPECIFICATIONS
STANDARDS FOR JUDGING PERFORMANCE
Slew Time
• Engine : Maximum r.p.m.
• Hydraulic Oil Temp. : 50~60°C
• Measurement Posture : Completely retract the
arm cylinder, fully extend the bucket cylinder and
adjust so that boom foot pin and bucket pin are
at matching height. Rest the dozer blade on the
ground.
• With the hoe attachment in a no-load state, wait
1 rotation, then measure the time required for the
next 2 rotations.
Overrun When Slewing Stops
• Engine : Maximum r.p.m.
• Hydraulic Oil Temp. : 50~60°C
• Measurement Posture : Same as that for measur-
ing slew time.
• Draw matching marks on the outer race of the
slew bearing and lower frame at an exactly 180
degrees rotation from the starting point. With the
hoe attachment in a no-load state, rotate 180 de-
grees at, which point return the operation lever
to neutral. Measure the differential between the
position marks and the point the hoe attachment
stops.
Natural Slew Drop
• Engine : Stopped
• Hydraulic Oil Temp. : 50~60°C
• Grade : 15°
• Measurement Posture : Same as that for measur-
ing slew time.
• Rotate the upper machinery so that it is directly
abeam of the grade, then draw positional marks
on the slew bearingʼs outer race and the lower
frame. Then measure the distance that develops
between the marks after 5 minutes.
Boom Cylinder Speed
• Engine : Maximum r.p.m.
• Hydraulic Oil Temp. : 50~60°C
• Measurement Posture : Completely retract the
arm cylinder, fully extend the bucket cylinder and
rest the dozer blade on the ground.
• Then measure the time required for the bucket to
reach its highest elevation point (lowest point)
from its lowest point (highest point) resting on the
ground. (Do not include the cushioning time.)