Battery can get overcharged and explode if the charging volts exceed 29. Adjust voltage
regulator to 29 V.
Do not force adjusting screw past stop. If regulator cannot be adjusted, replace bad regulator.
Use insulated cross-tip screw driver #1 to adjust voltage.
Adjust regulator output as follows:
90 and above: 27 V
50 thru 89 : 28 V
49 and below: 29 V
On M548A1, idle carrier between 9001100 rpm when adjusting regulator. On M548A3, idle
carrier between 10001200 rpm when adjusting regulators.
With engine running, turn adjusting screw (1) in regulator (2) until proper reading is achieved.
Install receptacle cap (1) on auxiliary power (slave) receptacle (2). (Refer to Step 5).
Install access screw (1) on regulator or access cover if removed.
Lower center seat (see your -10).
END OF TASK