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2. CALCULATING "SPEED CAL"
1) Complete "INITIAL CONSOLE PROGRAMMING" before doing this procedure.
2) Enter "0" in key labelled
3) Enter a SPEED CAL of 612 [155] in key labelled
4) Drive 1 mile [1 km].
CAUTION: Do not use vehicle odometer to determine distance. Use section lines or
Highway markers.
5) Read DISTANCE by depressing key labelled
a) DISTANCE should read a value of approximately 5280 [1000]. If it reads between 5200-5350
[990-1010], the SPEED CAL for your vehicle is 612 [155].
b) If the DISTANCE display reads any other value, perform the following calculation:
Multiply the SPEED CAL by the target distance reading, then divide the sum by the actual
value in DISTANCE display. This will give you the corrected value to enter for SPEED CAL.
You must round off to the nearest 3 digit whole number.
EXAMPLE: SPEED CAL = 612 [155]
Target distance reading = 5280 [1000]
Assume the actual DISTANCE display reads 5000 [980]
ENGLISH UNITS: METRIC UNITS:
= 612 x 5280 = 646.3 = [155] x [1000] = [158.1]
5000 [980]
6) The corrected number to enter for SPEED CAL is 646 [158].
7) Verify the corrected SPEED CAL number calculated above:
a) Zero out the DISTANCE display as in Step 2.
b) Enter the corrected SPEED CAL number as in Step 3.
c) Repeat Steps 4 and 5a. If DISTANCE value does not read correctly repeat Steps 5b, 6, and
7.
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