Komatsu 06253 Operation & Maintenance Manual page 69

OPERATION
Clearing Active Faults and Reset the
Centinel System to Operational Condition
Legend for illustration (Z23085A)
The illustration shows the terminal configuration on the (X2)
switch board in the cab base
(1) Calibration Plug for Engine Oil Quality
(2) Bridge wire for resetting the Centinel system to oper-
ational condition
Resetting of the Centinel system is necessary:
After every engine oil change.
Whenever the engine oil reserve tank has been allowed to
run empty.
After repairs on the Centinel system.
Proceed as follows:
1. Turn key switch to ON position. To prevent starting of the
engine, remove plug from pre-lube time relay 3D30, see
page 67 for location of the relay. Turn starter switch and
release.
2. For resetting the Centinel system bridge the contacts no. 13
and 14 at the terminal block (X2M) by inserting bridge wire
(2). Remove the bridge wire (2).
For additional information refer also to the electrical diagram,
page CENTINEL CONTROL MODULE (C1).
Check the Centinel System for proper Operation
1. Install plug to pre-lube time relay 3D30.
2. Start the engine. Look at the indicator lights (5) on monitor
box (4), see page 67 for more information. The green light
must be illuminated with the engine running.
Calibration Plug for Engine Oil Quality
Ex works the calibration plug (1) is installed for Centinel operation
with Mineral engine oil as shown in the illustration. When chang-
ing the engine oil quality from Mineral oil to Synthetic oil, the cali-
bration plug (1) must be replaced accordingly. Remove calibration
plug from contacts 12/13 at the terminal block (X2M) and insert to
contacts 13/14. Be sure to re-position the calibration plug when
changing back to Mineral engine oil. Use only engine oils as spec-
ified in the Engine Operation and Maintenance Manual.
REMARK
If Synthetic engine oil is used, plug (1) in position 13/14, then
reset the Centinel system by attaching bridge wire to terminals
12/13.
3.2 CONSTRUCTION OF THE SHOVEL
69