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10 Structure, function and maintenance standard
P:
From self pressure reducing valve
P1: To service valve
P2: To service valve
T:
To tank
1.
Spool
2.
Piston
3.
Lever
4.
Plate
5.
Retainer
6.
Block
7.
Body
8.
EPC valve
No.
Check item
9
Centering spring
10
Metering spring
PC300, 350-8
Standard size
Free length x
Installation
Outside diameter
length
33.9 x 15.3
28.4
22.7 x 8.10
22.0
Criteria
Repair limit
Installation
Free length
load
125 N
—
{12.7 kg}
16.7 N
—
{1.70 kg}
SEN01995-01
Unit: mm
Remedy
Installation
load
If damaged or
deformed, replace
100 N
spring.
{10.2 kg}
13.3 N
{1.36 kg}
19
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Troubleshooting
