Pmc (Powertrain Management Controller) And Mom (Message For Operation And Maintenance); Check Before Starting; Abnormality Displayed During Operation; How To Download The Stored Data In Pmc And Other Controllers - Komatsu HD785-5 Operation & Maintenance Manual

ATTACHMENTS, OPTIONS
PMC (POWERTRAIN MANAGEMENT CONTROLLER) AND MOM
(MESSAGE FOR OPERATION AND MAINTENANCE)

CHECK BEFORE STARTING

1. Turn ON the starting switch. If the maintenance caution lamp continues lighting up after all monitors and the
central warning lamp light up for approx. 3 seconds and then goes out, check the service code and its
description displayed on MOM and carry out the indicated checks and maintenance.
2. After starting the engine, move the shift lever to the N position while keeping the air pressure in the normal range
(the green range lights up). Pull the retarder control lever fully for 10 seconds or longer to check that the brake
does not exceed the wear limit. If the wear exceeds the limit, the maintenance caution lamp lights up and
simultaneously displays the service code and its description on MOM.
In this case, carry out checks and maintenance referring to "EVERY 1000 HOURS SERVICE (PAGE 4-58)".
Unless 15 minutes or longer has elapsed after the engine stopped, the maintenance caution lamp may light up
and the service code and its description may be displayed even if the oil level is shown as normal.

ABNORMALITY DISPLAYED DURING OPERATION

If an abnormality occurs during operation, the maintenance caution lamp also lights up and the service code and its
description are displayed.
However, the clogging of filters can not be detected unless the oil temperature rose to the specified value or over.
PMC detects abnormality in the maintenance items and displays the service code and its description on MOM
connected with PMC. If the controller other than PMC detects any abnormality, MOM also displays the service code
and its description and some message useful for operating the machine smoothly.

HOW TO DOWNLOAD THE STORED DATA IN PMC AND OTHER CONTROLLERS

Download of the stored data is available by connecting your service tool (personal computer) to PMC.
For details, see SERVICE MANUAL.
PMC (POWERTRAIN MANAGEMENT CONTROLLER) AND MOM (MESSAGE FOR
OPERATION AND MAINTENANCE)
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