Komatsu 930E-2, Shop Manual

Page: 631 / 739

PAYLOAD METER II RE-INITIALIZATION PROCEDURE
This procedure is designed to reset the Payload Meter II to clear repeated F.CAL errors.
This procedure is necessary to fix a rare condition in
the operation of the meter. Indication for this procedure
is a repeated display of F.CAL on the meter despite
repeated calibration. If possible, download the Pay-
load Meter before performing this procedure. This
procedure will erase all memory and user settings.
NOTE:
This procedure should be performed before any
Payload Meter is returned for warranty or repair.
Before performing this procedure, be sure that the
engine inputs into the payload meter can be manipu-
lated to indicate engine running and engine stopped.
Some payload meter installations have hard-wired
these inputs. These inputs must be accessible and
able to produce the following input conditions:
Condition
21C
Engine Oil
Pressure
21D
Alternator "R"
Terminal
Engine Running Open 24VDC
Engine Stopped Ground Open
1. Turn off all systems.
2. Turn on the Payload Meter but leave the engine
off.
3. Hold
MODE
and
LIGHT
until CHEC flashes.
4. Hold the
CAL
,
TOTAL
and
LIGHT
buttons until
00:00 is displayed.
5. Press
CAL
for 2 seconds. 00 00 will flash and the
meter will erase its memory and reset to its factory
settings. This includes and OP, UP, PL, P.SEL,
and E.SEL settings.
The meter will restart and display F.CAL.
6. Start the engine.
7. Set the time, date, OP, PL, and UP settings. All
other user settings should updated at this time.
8. Calibrate the Payload Meter by holding the CAL
button until CAL flashes.
9. Release the Brake Lock (Park Brake for 330M)
and begin driving 5-8 MPH on level ground and
press CAL .
CAL should display until the meter finishes its
calibration.
10. Load the truck to rated load and drive through one
haul cycle.
11. After dumping the load, wait at least 15 seconds
and drive the truck to a safe location.
12. Stop the truck and shut down the engine.
13. Turn on the Payload Meter but leave the engine
off.
14. Hold MODE and LIGHT until CHEC flashes.
15. Hold LIGHT and CAL until A:CLE flashes.
16. Press CAL to clear the service memory.
17. When CHEC is displayed, press MODE to return
to normal operation.
18. Clear the Haul Cycle Memory by holding MODE
until Cd:dP is displayed.
19. Press MODE and A.CLE will be displayed.
20. Hold CAL until A.CLE flashed.
21. Press CAL once more to clear the haul cycle
memory.
22. Clear the operator load counter by pressing the
TOTAL button until ":" is displayed.
23. Hold the CAL button until the display flashes.
24. Hold the CAL button until 0000 is displayed to
clear the memory.
25. The payload meter should now function normally.
M20007 10/00 Payload Meter II M20-33