TYM T233 HST - Page 221

Part names and
inspection items
Nominal
dimensions
Standard value
for reassembly
Usable
limits
Service instructions
and remarks
2) Dynamic lift
T233/T273 HST
550 ㎏f
At lift capacity behind
24in
3) Cylinder case bush
Left side
55 ×60 ×50 Ø 55 ㎜ Ø 55.2 ㎜ Wear limit: 0.2 ㎜
Right side
60 ×65 ×50 Ø 60 ㎜ Ø 60.2 ㎜ Wear limit: 0.2 ㎜
4) Flow divider (Back pressure of the steering valve)
Setting pressure of
PTO clutch port
9㎏f/㎠ over
5) SLOW RETURN CHECK VALVE(Flow control valve)
Maximum pressure
280 ㎏f/㎠
Gear oil
SAE #80 ∼ #90
at a temperature of 50 ±
5℃
Cylinder port leaks
1 ㏄/min.at a pressure of 90 ㎏f/㎠
6) MAIN CONTROL VALVE
11-5
6) MAIN CONTROL VALVE
Cylinder port leaks
5 ㏄/min or less under a pressure of 100 ㎏f/㎠
Gear oil
SAE #80 ∼ #90 at a
temperature of 50 ± 5℃
Clearance between
main spool and
casing
0.01 ㎜
7) MAIN RELIEF VALVE
T233/T273HST
145 ±5 ㎏f/㎠
8) MAIN GEAR PUMP
T233/T273HST 18.9 ℓ/min Efficiency of 91 % at
2600 rpm
9) SUCTION FILTER
Rated flow 35 ℓ/min
Filtration density 150 mesh
Filtration area
450㎠