Komatsu PC200-8M0, Shop Manual

Page: 375 / 1254

SEN06127-00
PC200, 200LC, 220, 220LC-8M0 30-101
23
101 Testing and adjusting, Part 1
Testing fuel discharge, return and leak amount
Testing fuel discharge, return and
leak amount
1
a
Testing tools for fuel discharge, return and leak
amount.
a
Since some fuel flows out during check, pre-
pare an oil (receiving) pan of approximately 20
l
.
k Stop the machine on a level ground and
lower the work equipment to the ground.
1. Measuring supply pump discharge
1) Loosen clamp (2) of discharge tube (1) of
the supply pump and disconnect tube (1).
2) Install test hose G6 to the nipple on the
discharge side of the supply pump.
a
Fix the hose with a wire etc.
a
Adjust the route of the test hose so
that it will not slacken and put its end
in an oil receiving pan.
3) Crank the engine for 30 seconds and
measure the discharge with measuring
cylinder
G4 .
a
Adjust the route of the test hose so
that it will not slacken and put its end
in an oil receiving pan.
a
Do not crank the engine for more than
30 seconds to protect the starting
motor in any case other than this
measurement.
a
If the supply pump discharge is in the
following standard range, it is normal.
4) After finishing measurement, remove the
measuring tools and return the removed
parts.
3 Tube sleeve nut:
35 ± 4 Nm {3.6 ± 0.4 kgm}
3 Clamp mounting bolt:
24 ± 4 Nm {2.5 ± 0.4 kgm}
Symbol Part No. Part name
G
1 795-790-4700 Tester kit
2
6164-81-5790 Joint
07005-01212 Washer
3
6754-71-5340 Connector
6754-71-5350 Washer
4
Commercially
available
Measuring cylinder
5
Commercially
available
Stopwatch
6
Commercially
available
Hose
(Inside diameter: 14 mm)
7
Commercially
available
Hose
(Inside diameter: 7 mm)
8
Commercially
available
Hose
(Inside diameter: 12 mm)
At cranking speed
(125 rpm)
Min. 75 cc
At cranking speed
(150 rpm)
Min. 90 cc