Table of Contents
Advertisement
TROUBLESHOOTING
All hydraulic testing is to be performed with hydraulic
oil at normal operating temperature, and engine speed
at low idle.
Refer to Figure 19-3 for hydraulic troubleshooting test
points shown with arrows.
Refer to Table 1 for shutter open and close specifica-
tions for Komatsu Engines.
1. Oil Supply
2. Pressure Reducing Valve
3. Pressure Reducing Valve
Coolant Temperature
Open 88 C (190 F)
Close 85 C (185 F)
M19003
FIGURE 19-3. HYDRAULIC TROUBLESHOOTING
4. Solenoid Valve
5. Wiring Harness
6. Tee Fitting
TABLE I. Komatsu SSDA16V160 Engines
Intake Manifold Temperature
Open 60 C (140 F)
Close 54 C (130 F)
Radiator Shutters
Ensure engine and key switch have been OFF for at
least 90 seconds to allow accumulator pressure to
bleed down.
Relieve pressure before disconnecting hydraulic
lines. Tighten all connections securely before
applying pressure.
Hydraulic fluid escaping under pressure can have
sufficient force to enter a person's body by pene-
trating the skin and cause serious injury and possi-
bly death if proper medical treatment by a
physician familiar with this type of injury is not
received immediately.
7. Pressure Gauge
8. To Cylinder Head End
9. To Cylinder Rod End
Fuel Temperature
Open 68 C (155 F)
Close 66 C (150 F)
M19-5
Advertisement
Chapters
Table of Contents
