HEADLAMP — Aiming Adjustment (Base K11)
EL-58prose procedureBase K11 HEADLAMP aiming adjustment. Top screw=horizontal, bottom screw=vertical. Range ±2° H, +2°/-4° V. Screen method: L=5m (16'5"), beam drop C=65mm (2.56in). Vehicle loaded (75kg driver, full fluids/fuel). Pattern for RH traffic, mirror for LH. Figs UEL055, SEL254I.
Aiming Adjustment
Vertical aiming of the headlamp reflector is achieved by adjusting the bottom adjuster screw.
Horizontal aiming of the headlamp reflector is achieved by adjusting the top adjuster screw.
When performing headlamp aiming adjustment, use an aiming machine, aiming wall screen or headlamp tester. For operating instructions of any aimer, it should be in good repair, calibrated and used according to respective operation manuals supplied with the unit.
If aiming equipment is unavailable, aiming adjustment can be performed as follows:
Low Beam
Low beam aiming
- 1Turn headlamp low beam on.
- 2Use Top and Bottom adjusting screws to achieve horizontal and vertical aiming respectively. Main optical axis of headlamp beam can be adjusted by +/- 2° horizontally and +2°/-4° vertically. First tighten the adjusting screw all the way and then make adjustment by loosening the screw.
Vehicle Conditions:
1) Vehicle should be correctly loaded i.e. coolant and engine oil filled up to the correct level, a full fuel tank and no other load other than the driver or an equivalent weight (75 kg) placed in the driver's position.
2) Keep all tires inflated to correct pressure.
3) Place vehicle and tester on same flat surface.
• Check specific regulations relating to country for intended use.
Adjustment Procedure
Aiming adjustment procedure
- 1Adjust headlamps so that main axis of light is parallel to center line of body and is aligned with point P shown in illustration.
- 2Figure to the left shows headlamp aiming pattern for driving on right side of road; for driving on left side of road, aiming pattern is reversed.
- 3Dashed lines in illustration show center of headlamp.
NOTE
Headlamp aiming. Top screw = horizontal aim, bottom screw = vertical aim (adjustment range ±2° horizontal, +2°/-4° vertical; tighten fully then back off to set). Vehicle must be properly loaded (fluids full, full fuel, 75 kg driver weight, correct tyre pressure, flat surface). Screen method: distance L = 5 m (16 ft 5 in), beam drop C = 65 mm (2.56 in) below the lamp-center horizontal line H. Pattern shown is for right-hand-traffic; mirror it for left-hand traffic. Always check local regulations.