TYM T430 - Page 289

11-8
Service instructions
and remarks
Usable
limits
Standard value for
reassembly
Nominal
dimensions
Part names and
inspection items
6) SLOW RETURN CHECK VALVE(Flow control valve)
1 ㏄/min.at a pressure of 90 ㎏f/㎠Cylinder port leaks
Gear oil
SAE #80 ∼ #90
at a temperature of 50
± 5℃ (122 ±41 F)
280 ㎏f/㎠(3982 psi)Maximum pressure
7) MAIN CONTROL VALVE (Updated version)
5 ㏄/min or less under a pressure of 100 ㎏f/㎠
0.01 ㎜Clearance between
main spool and
casing
Gear oil
SAE #80 ∼ #90 at a
temperature of 50 ±
5℃
Cylinder port leaks
8) MAIN RELIEF VALVE (Updated version)
135 ±5 ㎏f/㎠
3510/4110/T390
/T400/T430/T450
9) MAIN GEAR PUMP (Updated version)
Efficiency of 92 % at
2600 rpm
T390/T400: 26.026 ℓ
T430/T450: 28.39 ℓ
3510/4110/T390
/T400/T430/T450
10) SUCTION FILTER (Updated version)
T390/T400:43 ℓ/min
T430/T450:57 ℓ/min
Rated flow
T390/T400:35 micron
T430/T450:25 micron
Filtration density
T390/T400: 6231㎠
T430/T450:11000 ㎠
Filtration area
11) LINE FILTER (Updated version)
150 meshFiltration density
35 ℓ/minRated flow
790 ㎠Filtration Area