Komatsu F30791, Shop Manual

Page: 283 / 298

Unit: mm
No. Check item Criteria Remedy
1 Check valve spring
Standard size Repair limit
When
damage or
deformation
is found,
replace the
spring
Free length
x é.D.
Installed
length
Installed
load
Free
length
Installed
load
21.9x5 15.8
1.96 N
(0.2 kg)
Ð
1.57 N
(0.16 kg)
2 Pilotrelief valve spring 32.4x10.4 27
83.3 N
(8.5 kg)
Ð
66.6 N
(6.8 kg)
40-19
PC20R-8 PC27R-8
RKP02040
Sezione O - O
Sezione P - P
Sezione M - M
Sezione L - L
1
1
2
22.1 w 2.5 Nm
(2.25 w 0.25 kgm)
22.1 w 2.5 Nm
(2.25 w 0.25 kgm)
39.2 w 4.9 Nm
(4.0 w 0.5 kgm)
22.1 w 2.5 Nm
(2.25 w 0.25 kgm)
SectionL ± L SectionM ± M
SectionO ± O SectionP ± P