Komatsu Galeo PC800-8 Shop Manual page 592

SEN00791-02
Machine model
Model serial No.
Engine
Engine serial No.
A. Visual check
1 Fuel leakage to outside
2 Clogged fuel tank breather
B. Check with machine monitor (Abnormality record, monitoring, cylinder cut-out operation)
3 Checking error/failure code
Checking monitoring information
Code Display item
*1 Engine Speed
*2 Throttle speed
*3 Injection rate command
4
Common rail pressure
*4
command
*5 Common rail fuel pressure
*6 Injection timing command
*7 Boost Pressure
*8 Engine coolant temperature
*9 Fuel temperature
Checking cylinder cut-out operation (Engine speed)
Func-
Cut-out cylinder
tion
Cylinder 1
Cylinder 2
5
Cylinder 3
*10
Cylinder 4
Cylinder 5
Cylinder 6
C. Checking fuel circuit pressure
Pressure in fuel low-pressure
6
circuit
D. Checking strainer and filter
7 Visual check of strainer
8 Visual check of gauze filter
9 Visual check of fuel filter
10 Visual check of bypass valve
E. Checking leakage and fuel return rate
11 Leakage through pressure limiter
12 Return rate from injector
*1 – *10: Check with the monitoring function of the machine monitor.
12
Check sheet for no-pressure feed
#
#
/
Check conditions
Low idle
High idle
Rating or equivalent
Low idle
High idle
Rating or equivalent
Rating or equivalent
Rating or equivalent
Low idle
High idle
Rating or equivalent
Rating or equivalent
Low idle
Low idle
Check conditions
Low idle
Low idle
Low idle
Low idle
Low idle
Low idle
Check conditions
High idle
Check conditions
Speed in rated operation
(Pump relieved)
Rating or equivalent 1,600 rpm
Rating or equivalent 1,700 rpm
Rating or equivalent 1,800 rpm
Rating or equivalent 1,900 rpm
Rating or equivalent 2,000 rpm
Working No.
Checked on
Service meter
Worker name
/ /
Standard value
Unit
(Reference value)
rpm 825 ± 25
rpm 1,980 ± 50
rpm 1,800
% 0
% 100
3 —
mm
MPa
MPa
CA —
CA —
CA —
kPa —
°C —
°C —
Standard value
Unit
(Reference value)
rpm —
rpm —
rpm —
rpm —
rpm —
rpm —
Standard value
Unit
(Reference value)
MPa
Min. 0.15
2 {Min. 1.5}
{kg/cm }
Standard value
Unit
(Reference value)
cc/min Max. 10
cc/min 960
cc/min 1,020
cc/min 1,080
cc/min 1,140
cc/min 1,200
40 Troubleshooting
/ /
h
Good Bad
Good Bad
/
Measured
Good Bad
value
— —
— —
— —
— —
— —
— —
— —
Measured
Good Bad
value
— —
— —
— —
— —
— —
— —
Measured
Good Bad
value
Good Bad
Measured
Good Bad
value
Speed:
Return
rate:
PC800, 850-8