Komatsu PC20R-8 Shop Manual page 283

22.1w2.5 Nm
(2.25w0.25 kgm)
Section L ± L
Sezione L - L
Section O ± O
Sezione O - O
No. Check item
1 Check valve spring
2 Pilot relief valve spring
PC20R-8 PC27R-8
1
39.2w4.9 Nm
(4.0w0.5 kgm)
Standard size
Free length Installed
x é.D. length
21.9x5 15.8
32.4x10.4 27
22.1w2.5 Nm
(2.25w0.25 kgm)
Section M ± M
Sezione M - M
2
Section P ± P
Sezione P - P
Criteria
Repair limit
Installed Free
load length
1.96 N
Ð
(0.2 kg)
83.3 N
Ð
(8.5 kg)
1
22.1w2.5 Nm
(2.25w0.25 kgm)
RKP02040
Unit: mm
Remedy
When
Installed
damage or
load
deformation
1.57 N
is found,
(0.16 kg)
replace the
spring
66.6 N
(6.8 kg)
40-19