© Jun 2022 2-8 TB24 Plus&26J Plus Maintenance Manual
SPECIFICATIONS
Compression
Ratio
18:1
Firing Order
1-3-4-2
Output 36.8kW@2500rpm
Max.torque
200Nm(147.5 ft-lb)@1400–
1700rpm
Cooling
System
Capacity
5L
1.10 gal(UK)
1.32 gal(US)
Engine Oil
Capacity
9.14L
2.01 gal(UK)
2.41 gal(US)
IdleSpeed 750±20rpm
Table 2-7 YUCHAI YCF3050
Type
In-line, water-cooled, 4–stroke
Number of
Cylinders
4
Bore
96mm(3.78 in)
Stroke
103mm(4.06 in)
Total
Displacement
2.982L
0.66 gal(UK)
0.79 gal(US)
Compression
Ratio
17.5:1
Firing Order
1-3-4-2
Output 36.8kW@2200rpm
Max.torque 210Nm(154.9 ft-lb)@1500rpm
Cooling
System
Capacity
4L
0.88 gal(UK)
1.06 gal(US)
Engine Oil
Capacity
8.5L
1.87 gal(UK)
2.25 gal(US)
IdleSpeed 900–950rpm
FUNCTION SPEED
Table 2-8
ITEM TB24 Plus TB26J Plus
Boom up
95~110s 95~110s
Boom down 85~100s 85~100s
Turntable rotate
(360°)-stowed
95~103s 95~103s
Turntable rotate
(360°)-fully extended
210~250s 210~250s
Boom extend 80~90s 80~90s
Boom retract 70~80s 70~80s
Platform rotate (160°)
18~22s 18~22s
Platform level up
50~60s 50~60s
Platform level down 40~50s 40~50s
Jib up
\ 32~38s
Jib down \ 22~28s
Max drive speed
(30m) -stowed
23~27s 23~27s
Max drive speed
(30m) -working
94~102s 94~102s
a) The function speed depends on the start and end
point of the movement rather than the controls/
switches.
b) The test results of drive speed vary with tires of
different specifications.
c) All the speed tests should be conducted from the
platform controller, The test results will differ if tested
from the ground controller.
d) All the tests should be conducted with the
hydraulic oil temperature higher than 38℃. If the
hydraulic oil temerature is too low, the test results will
be affected.
Test requirements:
Boom up/down:With the boom fully retracted, raise
and lower the boom through two full cycles.
Turntable rotate:With the boom centered, rotate the
turntable through two full cycles.
Boom extend/retract:With the boom fully raised,
extend and retract the boom through two full cycles.
Platform rotate:With the platform horizontal, rotate
left and right the platform through two full cycles.
Jib up/down:With the platform horizontal, raise and
lower the jib boom through two full cycles.