Komatsu Galeo PC800-8 Shop Manual page 915

Hydraulic excavator
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50 Disassembly and assembly
Installation
1.
While setting key (K) of fuel supply pump (30)
to key way (G) of the gear, install fuel supply
pump (30).
2.
Tighten all of supply pump (30), bracket (29),
and high-pressure pipes (21) temporarily with
the fingers.
3.
Tighten high-pressure pipes (21) permanently.
3
Sleeve nut:
4.
Tighten supply pump (30) permanently.
5.
Tighten bracket (29) permanently.
6.
Install cover (20).
a Direct the slit on the fuel supply pump side
toward the cylinder block and direct that
on the common rail side down.
7.
Install bracket (15).
8.
Tighten the brackets and upper and lower
clamps of high-pressure pipe clamps (16),
(17), and (19) temporarily with the fingers and
then tighten them permanently in order.
3
Clamping bolt:
PC800, 850-8
39.2 – 58.8 Nm {4 – 6 kgm}
(Common rail side)
39.2 – 49 Nm {4 – 5 kgm}
(Supply pump side)
9.8 ± 1 Nm {1.0 ± 0.1 kgm}
Carry out the following installation in the
q
reverse order to removal.
[*1]
Adjust the air conditioner compressor belt tension.
For details, see Testing and adjusting, "Testing and
adjusting air conditioner compressor belt".
[*2]
3
Tube joint bolt:
24.5 – 34.3 Nm {2.5 – 3.5 kgm}
[*3]
3
Fuel tube (23):
14.8 – 19.6 Nm {1.5 – 2.0 kgm}
[*4]
3
Joint bolt of fuel tube (9):
14.8 – 19.6 Nm {1.5 – 2.0 kgm}
24.5 – 34.3 Nm {2.5 – 3.5 kgm}
[*5]
3
Joint bolt of fuel hose (10):
14.8 – 19.6 Nm {1.5 – 2.0 kgm}
SEN01054-01
43 – 47 Nm {4.4 – 4.8 kgm}
(Upper sleeve nut)
(Lower joint bolt)
(Supply pump side)
(Filter side)
5

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