IHI 9VX3, Руководство по обслуживанию

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15
Ц
13 5
\ \
11 4
Relief valve assembly drawing cross section
No. Description
Q ’ty
1
Socket
1
2
Adjust pressure valve
1
3 Piston
1
4 Adjustm ent section
1
5 Main body
1
6
Adjustm ent valve
1
7 Adjustm ent spring
1
8
Nut
1
9 Adjustm ent valve spring
1
1 0
Adjust valve spring
1
1 1
O-ring
1
1 2
O-ring
1
13 O-ring
2
14 Backup ring
2
15 O-ring
1
Symbol
Overload relief valve setting pressure
MPa
OR1
Boom up 18.6+° 49 at 5 L/min
OR
2
Boom down 18.6+° 49 at 5 L/min
OR3 Arm pull-off 18.6+° 49 at 5 L/min
Pump
Main relief valve setting pressure
MPa
P1
MR1
16.2
+_°2
at 12.5 L/min
P2 MR2 1 6 . 2 9 at 12.5 L/min
p~
■ j
_
Notes on damages due to over-tightening
О
Piping adapter on P/T port marked *
Tightening torque: 69+ON • m
О
Other piping adapters
Tightening torque: 34-44N • m