Komatsu PC20R-8 Shop Manual page 282

Section J ± J
Sezione J - J
44.1w4.9 Nm
(4.5w0.5 kgm)
No. Check item
Check valve spring
1
(arm)
40-18
147.1w9.8 Nm
(15w1 kgm)
Standard size
Free length Installed
x é.D. length
21.9x5 15.8
Section E ± E
Sezione E - E
22.1w2.5 Nm
(2.25w0.25 kgm)
Section K ± K
Sezione K - K
Criteria
Repair limit
Installed Free
load length
1.96 N
Ð
(0.2 kg)
53.9w4.9 Nm
(5.5w0.5 kgm)
1
RKP02030
Unit: mm
Remedy
When
damage or
Installed
deformation
load
is found,
replace the
1.57 N
spring
(0.16 kg)
PC20R-8 PC27R-8