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Page Title:
Table 55. External Hydraulic Circuit Characteristics |
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 WTEC III ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL
D SUMP STIC CODES
as shown on the gauge with Figure 58 for TID 1 thermistors and Appendix Q for TID 2
thermistors. If wiring problems or a great difference between temperature and resistance
compared with the chart are found, drain the fluid, remove the control module, and replace the
temperature sensor. If wiring problems are found, repair or replace as necessary.
3. If the fluid is hot when the code is produced, observe the gauges to see if the engine became hot
before the transmission. If the engine cooling system is overheating and heating the transmission,
the problem is with the engine or its cooling system.
4. If the transmission became hot before the engine, allow the vehicle to idle for 35 minutes and
check the transmission fluid level. Correct the fluid level if necessary.
5. Attach pressure gauges to the cooling system (from a "to cooler" connection to a point after the
cooling circuit filter) and check for pressure drop problems. If pressure drop is excessive (refer to
6. If the fluid level is correct and the cooling circuits satisfactory, drain the fluid, remove the control
module, and inspect for damaged valve body gaskets. Replace any damaged gaskets.
7. If no problems are found in the control module area, remove the transmission and disassemble, in-
specting for causes of overheating (stuck stator, plugged orifices, dragging clutches, etc.).
Basic, PTO, 93C (200F) Sump Temperature
HD/B 500
CONVERTER OPERATION
CONVERTER OPERATION
MAXIMUM COOLER FLOW
COOLER FLOW AT MAXIMUM
AT MINIMUM PRESSURE DROP
ALLOWABLE PRESSURE DROP
Flow
Pressure Drop
Flow
Pressure Drop
Input
Input
L/s
gpm
kPa
psi
L/s
gpm
kPa
psi
rpm
rpm
600
0.22
3.4
0
0
600
0.20
3.2
31
4.5
900
0.38
6.1
0
0
900
0.37
5.8
63
9.1
1200
0.55
8.7
0
0
1200
0.55
8.7
108
15.7
1500
0.80
12.7
0
0
1500
0.77
12.2
167
24.2
1800
1.03
16.4
0
0
1800
0.92
14.5
213
30.9
2100
1.13
18.0
0
0
2100
0.97
15.3
238
34.5
2300
1.20
19.0
0
0
2300
1.00
15.9
250
36.3
0021 0066
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