Testing Engine Oil Pressure - Komatsu PC88MR-10 Shop Manual

Testing engine oil pressure

a Testing tools
Sym-
Part No.
bol
799-101-5002 Hydraulic tester
1
790-261-1204 Digital hydraulic tester
799-401-2320 Gauge
F 2
6732-81-3170 Adapter
3
07002-11023 O-ring
Place the machine on a level ground and
lower the work equipment to the ground.
a Check this item under the following conditions.
Coolant temperature: 75 to 94°C
Testing
(PC88MR-AB00-362-K-00-A)
1. Remove covers (1) and (2).
2. Remove oil pressure pickup plug (3) from the
engine block.
PC88MR-10
(PC88MR-AB00-360-K-00-A)
Part name
30 Testing and adjusting
3. Install the O-ring to adapter F3, and connect
them to gauge F2 by using nipple [1] and hose
[2] of hydraulic tester F1.
4. Start the engine, and turn the auto-decelerator
OFF.
5. Measure the oil pressure with the engine at low
idle and high idle.
6. After finishing the test, remove the testing tools,
and restore the machine.
Oil pressure pickup plug:
20 to 22 Nm {2.0 to 2.2 kgm}
Engine and cooling system
30-15