Testing Fuel Discharge, Return And Leak Amount - Komatsu PC200-8M0 Shop Manual

101 Testing and adjusting, Part 1

Testing fuel discharge, return and leak amount

Testing fuel discharge, return and
leak amount
a
Testing tools for fuel discharge, return and leak
amount.
Symbol Part No.
1 795-790-4700 Tester kit
6164-81-5790 Joint
2
07005-01212
6754-71-5340 Connector
3
6754-71-5350 Washer
Commercially
4
available
G
Commercially
5
available
Commercially
6
available
Commercially
7
available
Commercially
8
available
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.
PC200, 200LC, 220, 220LC-8M0
Part name
Washer
Measuring cylinder
Stopwatch
Hose
(Inside diameter: 14 mm)
Hose
(Inside diameter: 7 mm)
Hose
(Inside diameter: 12 mm)
1
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.
At cranking speed
(125 rpm)
At cranking speed
(150 rpm)
4) After finishing measurement, remove the
measuring tools and return the removed
parts.
3
Tube sleeve nut:
3
Clamp mounting bolt:
SEN06127-00
Min. 75 cc
Min. 90 cc
35 ± 4 Nm {3.6 ± 0.4 kgm}
24 ± 4 Nm {2.5 ± 0.4 kgm}
30-101
23