Road Test

PROCEDURES
Follow the procedure given commencing each test, from a standing start, on a level road, in good weather conditions.

ROADTEST 1 = CHECKS 1-2-3-4-5-6-7-8
D SELECTED KICKDOWN START FROM REST
CHECK 1
- Check for clutch squeal and slip.
- Check pressure is 150 lbs/in2
CHECK 2
- Check 1 st to 2nd upshift speed and quality.
- Pressure should fall to 120 lbs/in2.
CHECK 3
- Check 2nd-3rd upshift speed and quality.
- Pressure should fall to 100 lbs/in2
CHECK 4
- Release throttle to allow simultaneous engagement 4th + Direct Drive Clutch (DDC).
- Check shift quality and engine rpm drop of approximately 500 rpm.
CHECK 5
- To proceed to Check 5 release throttle and check drop out speed of direct drive clutch to 4th.
CHECK 6
- Check down shift speed and quality 4th to 3rd.

NOTE: This shift is usually very smooth and difficult to detect.

CHECK 7
- Check downshift speed and quality 3rd to 2nd.
CHECK 8
- Check downshift speed and quality 2nd to 1st.
- Also difficult to detect.
END OF ROADTEST 1

ROADTEST 2 CHECKS = 9-10-11
D SELECTED: FULL THROTTLE START FROM REST
CHECK 9
- Check 1st-2nd upshift speed and quality.
CHECK 10
- Check 2nd 3rd upshift speed and quality.
CHECK 11
- Check 3rd 4th and direct drive clutch upshift speed and quality.

NOTE: 4th and the direct drive clutch engage simultaneously.
END OF ROADTEST 2

ROADTEST 3 = CHECKS 12-13-14-15-16-17-18-19-20-21-22-23
D SELECTED: LIGHT THROTTLE START FROM REST
CHECK 12
- Check 1 st 2nd upshift speed and quality.
CHECK 13
- Check 2nd 3rd upshift speed and quality.
CHECK 14
- Check 3rd 4th upshift speed and quality.

NOTE: This shift is usually very difficult to detect but can be confirmed by a 200 rpm drop in engine speed.

CHECK 15
- Check speed and quality of shift into direct drive clutch, confirmed by 300 rpm drop in engine speed.

NOTE: An intermediate throttle position engagement of 4th and the direct drive clutch, which is indicated by a fall of 500 rpm in engine speed.

CHECK 16
- At approximately 88 kph (55 mph) depress throttle to kickdown - gearbox should change down to 2nd -release throttle to re-engage 4th direct drive clutch continue to accelerate gently.
CHECK 17
- At approximately 128 kph (80 mph) depress throttle to kickdown - gearbox should change down to 3rd -release throttle to re-engage 4th direct drive clutch and continue to accelerate gently.
CHECK 18
- At approximately 138 kph (85 mph) select 3rd, gearbox should change immediately down to 3rd.
- Release throttle.
CHECK 19
- De-accelerate to approximately 47 kph (30 mph) depress throttle to kickdown - gearbox should downshift to 1 st gear, continue accelerating at full throttle until 3rd gear is attained.
- To do this you will have repeated check 2 of Test 1.
CHECK 20
- At 128 kph (80 mph) select 2nd no downshift should occur.
- Release throttle.
CHECK 21
- At 104 kph (65 mph) an automatic downshift into 2nd gear should occur.
- Continue to de-accelerate.
CHECK 22
- At 88 kph (55 mph) select 1 st. No downshift should occur.
- Continue to de-accelerate.
CHECK 23
- With 1 selected 2nd gear engaged continue to de-accelerate and at 45 kph (28 mph) the box should automatically downshift to 1 st gear after which no upshifts will occur in this selector position.
END OF ROADTEST