Tci Digital Output Tests - Komatsu 930E-2 Shop Manual

TCI Digital Output Tests:

Note: The lamp test switch on the Overhead Display
will not activate the G.E. propulsion system lamps
when the PTU is in the Manual Digital Output Test
mode.
1. Apply the park brake switch and place the Rest
switch in the OFF position.
2. On the TCI COMMUNICATION MENU, place
cursor on "Engine Stopped Tasks" and press
{enter}.
3. Place cursor on "Manual Test Screen". Press
{enter}.
4. For Table II steps 1 through 17, turn on each
discrete output by highlighting it then pressing
{enter}. After the output is verified, press {enter}
to turn it off. Refer to Figure 3-4 for lamp location
and color.
STEP DO NAME
1 RESTLT
2 PSCNOTRDY
3 REDUCELT
4 LINKONLT
5 TEMPWARNLT
6 NORETARDLT
7 NOPROPELLT
8 PSCWARNLT
9 RTRDCONTLT
10 HYDBHOTLT
11 PKBRKON
12 RETARDLT
13 RETARDXLT
14 BATSEPC
15 SPEED1
16 SPEED2
17 REVERSELT
Refer to TCI Digital Output Test procedure step 5. before performing the following test:
18 ENGCRANK
E3-14
TABLE II: TCI DIGITAL OUTPUT TESTS
DESCRIPTION
Rest Light
Propel System Not Ready Light
Reduced Propulsion Level Light
Link ON light, DID Panel (Behind Operator's Seat)
Propulsion System Temperature Warning Light
No Retard, No Propel Light
No Propel Light
PSC Warning Light
Reduced Retarding Light
Hydraulic Brake Fluid Hot Light
Verify park brake switch is applied:
Measure Circuit 52CS @ TB26 to ground:
Press {enter} to turn PKBRKON on:
Retard Light (on overhead display)
Retard light (on top of cab and rear of truck)
Battery Separate Relay
Measure Circuit 21BSR @ TB28 to ground
With BATSEPC highlighted, press {enter}: verify 0.0 VDC
not used
not used
Activates backup horn and backup lights
Engine Crank Signal
AC Drive System Electrical Checkout Procedure
(Release 17 Software)
Before performing step 18 (Table II), verify circuits
21SS and 21SR (MTU 396 engine) are removed
from the starters or 21 B (MTU/DDC 16V4000 or
Komatsu engine) are removed from starter sole-
noids and the parking brake is applied.
5. For Table II, step 18, change PTU from "Engine
Stopped Tasks" screen to Real Time Data
screen:
¤ {escape} {escape}
¤ cursor to "Normal Operation" {enter}
¤ cursor to "TCI Real Time Data" screen {enter}
a. Place selector switch in NEUTRAL and apply
park brake.
Verify 0.0 volts
Verify approx. 24 volts
LOCATION
(FIG. 3-4)
B6
C6
D6
C5
A5
A6
B5
D6
D5
A3
D3
B4
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