HEADLAMP — Headlamp Aiming Control — Description (Cont'd) + Circuit Operation + Aiming Adjust (Base K11)
EL-50prose procedureBase K11 HEADLAMP — aiming control circuit operation + adjust. Self-stopping commutator sensor: at '0' motor parked (non-conductive), 0→1 drives DOWN (A→B), 1→0 drives UP (B→A). Aiming motor unit not disassemblable. Horizontal aim = top screw, vertical aim = screw on back of aim motor. Figs SEL220P, SEL659F-661F, SEL251P.
Description (Cont'd)
CAUTION
Aiming motor unit can not be disassembled.
CIRCUIT OPERATION
[Example] Aiming switch '0'
• When the aiming switch is set to '0', the motor will not start because the power terminals are positioned at the nonconductive section of the sensor's rotary unit.
Aiming switch '0' → '1'
• When the aiming switch is moved from '0' to '1', power is applied to the motor through the sensor's conductive section. The headlamps will then move in the 'DOWN' direction.
• The motor continues to rotate while the rotary unit of the sensor moves from point A to point B.
• The power terminals will then be positioned at the nonconductive section, disconnecting the power to the motor. Then motor stops.
Aiming switch '1' → '0'
• When the aiming switch is moved from '1' to '0', power is applied to the motor through the conductive section of the sensor. The motor will rotate to move the headlamps in the 'UP' direction.
• When the rotary unit of the sensor moves from point B to point A, the motor will stop.
HEADLAMP AIMING — Adjust
Headlamp aiming adjustment
- 1Horizontal aiming of the headlamp is achieved by adjusting the top adjusting screw as detailed for non-headlamp aim version.
- 2Vertical aiming of the headlamp is achieved in the same way as for non headlamp-aim versions, except that the aim adjusting screw is situated on the back of the headlamp aim motor.
NOTE
Circuit operation of the aiming control: the rotary sensor's conductive/non-conductive commutator segments self-stop the motor at each switch position. At '0' the power terminals sit on a non-conductive section so the motor never starts (rest position). Moving 0→1 drives DOWN (A→B); 1→0 drives UP (B→A). The aiming motor unit cannot be disassembled — replace as a unit. Horizontal aim uses the top adjusting screw (same as non-aim version); vertical aim screw is on the back of the aim motor for aiming-control models.