c. Determine if a specific diode is good or no good by the way the needle swings.
• If the needle does not swing in Case i), but swings in Case ii): Normal (but the breadth of swing (i.e. resistance value) will differ depending on a circuit tester type or a selected measurement range)
• If the needle swings in either case of i) and ii): Defective (short-circuited inter- nally)
• If the needle does not swing in any case of i) and ii): Defective (short-circuited in- ternally)
10 5 A
1 7
TESTING AND ADJUSTING Inspection procedures for diode
Blank for technical reason
Special function of monitor panel TESTING AND ADJUSTING
Special function of monitor panel
1 Figure input switch 1 6 Figure input switch 6
2 Figure input switch 2 7 Figure input switch 7
3 Figure input switch 3 8 Figure input switch 8
4 Figure input switch 4 9 Figure input switch 9
5 Figure input switch 5 10 Figure input switch 0
Undo switch Scroll up switch Scroll down switch
TESTING AND ADJUSTING Special function of monitor panel
1. Monitor panel functions - conventional and spe- cial
The monitor panel is provided with conventional and special functions, and various kind of infor- mation are shown in the multi-display. Display items consists of automatic display items that are preset in the monitor panel and others that are shown by switch operations.
1. Conventional function: Operator's Menu This is a function by which an operator can set or show displays by switch operations. The display contents are those which are normally shown.
2. Special function: Service Menu
This is a function by which a service mechanic can set or show displays by special switch oper- ations. The display contents are those which are not normally shown. It is mainly used for inspec- tion, adjustment, trouble-shooting or special set- ting of machines.
Operator's Menu
1 Function for inputting and setting password, see page 20-164.
2 Function for showing Komatsu's logo, see page 20-164.
3 Function for machine inspection before starting day's work, see page 20-164.
4 Function for showing machine maintenance, see page 20-164.
5 Function for showing precaution items, see page 20-165.
6 Function for confirming working mode and travel speed, see page 20-165.
7 Function for display of ordinary items, see page 20-165.
8
Function for adjusting display luminance and contrast, colour and clock
see page 20-165.
9 Function for adjusting breaker and attachment flow rate, see page 20-166.
10 Function for confirming maintenance information, see page 20-169.
11 Function for showing service meter reading or clock, see page 20-169.
12 Function for showing occurrence of caution item, see page 20-169.
13 Function for showing users' code No., see page 20-169.
14 Function for showing service code No. and failure code No., see page 20-170.
Service Menu
01 Function for monitoring 02 Function for abnor-
mality history
Electrical system Mechanical system 03 Function for maintenance history 04 Function for maintenance mode change 05 Function for recording phone No.
06
Function for initial value setting and default
Mode with key on Language Unit
With/without service circuit
07 Function for adjust- ment
Pump absorbtion torque Compound Op. ATT. flow adjust- ment
1st ATT flow R adjustment 1st ATT flow L adjustment 2nd ATT flow R adjustment 2nd ATT flow L adjustment 08 Cylinder cut-out
09 No Injection
Special function of monitor panel TESTING AND ADJUSTING
Operation of operators menu and diplay (outline)
• This section introduces only the outline of the operator's menu. For details on the contents and operation steps of each menu, refer to the operation and maintenance manual or section 10 ("STRUCTURE, FUNCTION AND MAINTE- NANCE STANDARDS") in this shop manual chapter on monitor system.
1. Function for inputting and setting password
When the engine starting switch is turned ON, the password inputting display is shown.
• This display is shown only when a password is regis- tered.
2. Function for showing KOMATSU logo
When a password is input, or when the engine starting switch is turned ON, KOMATSU logo is shown for two sec- onds.
3. Function for machine inspection before starting day's work
Following the KOMATSU logo, the display of machine in- spection before starting day's work is shown for 2 seconds.
4. Function for machine maintenance
Following the display of machine inspection before starting day's work, the maintenance mark appears for 30 seconds, if there is a service item whose maintenance time is ap- proaching or has just passed.
• This display appears only when the maintenance func- tion is set.
TESTING AND ADJUSTING Special function of monitor panel
5. Function for showing precaution items
If there is any item of machine inspection before starting day's work that indicates some abnormality, a corresponding symbol mark is shown.
6. Function for confirming working mode and travel speed
7. Function for display of ordinary items
The display of confirming working mode and travel speed is switched to this display of ordinary items.
• If the working mode setting or travel speed setting is changed, or auto-deceleration FNR setting is activated while this is in display, an amplified corresponding sym- bol mark is shown for two seconds.
• In this display, a symbol mark for preheat monitor is shown only when preheating is carried out.
8. Function for adjusting display luminance and contrast Contrast, brightness, clock and background colour of the display can be adjusted by firstly pressing Maintenance key [6] on the monitor then selecting item [01], [02], [03] or [04]
to adjust.
Special function of monitor panel TESTING AND ADJUSTING
9. Function for adjusting breaker and attachment flow rate (for machines equipped with breaker attachment) When a breaker or other attachments are used, hydraulic pump flow rate can be adjusted by operating the select switch.
• Note that the symbol mark and contents of display par- tially differ between the breaker
Select switch (5) is used to select the hydraulic flow setting in each of the working modes P, E and B.
a. When the working mode is P or E