Page 3
Aiming High Beams and Auxiliary Driving Lights 18 Aiming Fog Lights 19 Aiming European Beams 20 Nominal Vertical Aim for Low Beams 21 Checking the Aimer 22 Warranty Information 28 Lujan USA Po Box 411 Camillus, NY 13031-0411 (315) 468-4140 www.lujanusa.com Index - Page 1...
Page 4
THE “SNIPER” OPTICAL HEADLIGHT AIMER MODEL 5412a Thank you for purchasing the Sniper 5412a OpticalHeadlight Aimer. You have made a wise purchase decision. The 5412a is a high quality, durable piece of equipment that will give you years of trouble free operation.
Page 5
COMPONENTS: .Optical aimer head .Extruded mast .Reinforced base with wheels .Hardware to attach the extruded mast to the base: 1 Bolt DIN 912, M 10 x 50 1 Washer DIN 7980, 10 mm 1 Flat washer, 10 mm .Lateral alignment visor .Lock / unlock mechanism .Mast cap .Precision floor slope...
Page 6
STEP 1 Bolt the mast, with adjustment plates, to the base aligning the mast as shown in fig. 1. Be sure that the threaded Fig. 1 adjustment plate is the top plate. Install the locknuts on the adjustment bolts, and thread adjustment bolts loosely into the top plate, only one or two turns at this time.
Page 7
STEP 4 Install the lateral alignment visor (fig. 5). The narrow slot in the visor should face the rear of the aimer (the wide slot faces the front). Hardware for Pointer Positioning System STEP 5 Install the pointer positioning system using hardware as shown in figure 7.
Page 8
INITIAL FLOOR SLOPE COMPENSATION Vehicle and aimer are both located on a flat and level floor. Floor compensation is required. Fig. 12 Vehicle and aimer are both located on a flat floor with a constant slope. Floor compensation is required. Fig.
Page 9
RECORDING THE FLOOR SLOPE SETTING … Near the floor slope adjustment knob , there is a † register consisting of a small cylinder that can be … used to count the turns of the knob . This register Floor slope adjustment knob sinks or raises with each turn of the knob (fig.
Page 10
PREPARING THE VEHICLE FOR HEADLAMP AIM OR INSPECTION Before checking the aim, the inspector shall; Remove ice ormudfromunderfenders. Set tire inflation pressures to the values specified on the tire sidewall or information label. Check car springs for sag or broken leaves. See that there is no load in the vehicle other than the driver.
Page 11
POSITIONING THE AIMER AT THE HEADLIGHT Place the aimer in front of one 10-14 in headlamp at a distance between 10 25-35 cm to 14 in. (25 to 35 cm). Most beam patterns are clearest if the optical lens is about 12” from the lamp surface.
Page 12
ALIGNING AIMER TO VEHICLE With aimer in front of the headlight, choose two symmetrical points of the vehicle located also at the same height (i.e. the upper part of the lamps, strut bolts, radiator support bolts). Points located too high, such as the vehicles roof, should be avoided: the best accuracy is obtained using lower points.
SET BEAM SLOPE KNOB These procedures are required by the new SAE J599 (Aug. 97) Standard. The Beam Slope Knob compensates for different headlamp heights. It must be set prior to aiming headlights. Set the Beam Slope Knob based on the distance from the ground to center of the headlamp.
Page 14
BEAM SLOPE IF SPECIFIED IN DEGREES, PERCENT, or MM/7.6M Use this chart for vehicles which have beam slope specified in percentage, degrees, or mm at 7.6 meters (mostly European type lamps). BEAM SLOPE CONVERSION CHART inches mm at degrees at 25 ft 7.6 m 0.57 0.69...
Page 15
DESCRIPTION OF THE INTERNAL SCREEN OF THE AIMER The Sniper 5412a is designed to reproduce, at a smaller scale, an aiming test screen compliant with the Standard SAE J599 (revised August 1997) The beam projections appear on the internal screen of the aimer as they would appear on a screen located 25 feet from the headlamps.
Page 16
Lujan USA has developed a beam elucidation filter to make it easier to view these beam patterns. The filters are designed to remove some of the extraneous light from the viewable pattern and enhance the high intensity zone, providing an image that is clearer and easier to see.
Page 17
AIMING LOW BEAM HEADLAMPS Low Beam Headlamps are aimed so that the top edge of the high-intensity zone is at the Nominal Vertical Aim Line , and the left edge of the high-intensity zone is at the vertical center line of the screen. The beam slope knob should be set based on center height of headlight (see table 1, page 21).
Page 18
DIFFERENT LOW BEAM PATTERNS There are many different beam patterns used in domestic vehicles. When checking headlights with complicated beam patterns, you must locate the part of the high intensity zone that shines farthest down the road ( is highest on the screen) .
Page 19
INSPECTION LIMITS FOR LOW BEAM HEADLIGHTS INSPECTION LIMITS FOR LOW BEAM HEADLIGHTS INSPECTION LIMITS FOR LOW BEAM HEADLIGHTS INSPECTION LIMITS FOR LOW BEAM HEADLIGHTS INSPECTION LIMITS FOR LOW BEAM HEADLIGHTS INSPECTION LIMITS FOR LOW BEAM HEADLIGHTS 4" 4" 4" 4" 4"...
Page 20
AIMING HIGH BEAM HEADLAMPS AND AUXILIARY DRIVING LIGHTS High beam headlamps and auxiliary driving lights are aimed so that the center of the high- intensity zone is located at the horizontal and vertical center of the screen. HI & Lo Set the Beam Slope Knob at The figure shows the high- intensity zone (shaded area) of a...
Page 21
AIMING FOG LAMPS The correct aim for fog lamps with symmetrical beams (as described in SAE J583) is with the top edge of the high-intensity zone at or below the horizontal centerline and the center of the high-intensity zone centered on the screen. Set the Beam Slope Knob to the LO &...
Page 22
AIMING EUROPEAN LOW BEAM HEADLAMPS European low beams do not have a high-intensity zone, all the illuminated area has a similar intensity. European type low beams are aimed so the cutoff of the illuminated zone is located at the horizontal and biased line. European low beams are normally aimed...
Page 23
NOMINAL VERTICAL AIM FOR LOW BEAMS The revised SAE J599 standard (8/97) requires low beam headlight aim to be adjusted based on headlamp height from the ground. The NOMINAL VERTICAL AIM position on low beam headlamps, as introduced in the new revision of the Standard SAE J599, "shall be adjusted based on the headlamp mounting height, from the ground to the light source center of the headlamp".
Page 24
CALIBRATING THE AIMER There are four components that calibrate the aimer for precision measurement. 1) The plumb of the mast 2) The calibration laser 3) The calibration of the lateral alignment visor 4) The adjustment of the screen The following pages will explain proper calibration of each component. CHECKING VERTICAL CALIBRATION (PLUMB) OF THE MAST Place aimer on a flat level surface.
Page 25
CHECKING CALIBRATION OF THE LASER CAUTION Use a ruler with increments of at least of 1/16" (or 1 mm) to determine that the laser LASER RADIATION beam height from the bottom is the same at DO NOT STARE INTO BEAM the laser pointer and at the front of the aimer head, see fig.
Page 26
CHECKING THE LATERAL ALIGNMENT VISOR Check calibration of the visor by looking through the visor at the lateral calibration line on the aimer head (as shown in drawings below). The line in the visor must match the line on the aimer head. If the visor is not perfectly aligned with the aimer's head, turn the small allen (1.5 mm) screw at the bottom of the visor until the lines match.
CALIBRATING THE SCREEN To check the aimer for accuracy, place a car in front of a screen or a flat vertical wall, at a distance of 25 feet (7.6m). Trace ormarkwithtapethelinesasshowninthefigurebelow. If the headlamp mounting height of the vehicle used for the test is more than 36in, then a Nominal Vertical Aim line at the distance specified in the Table 1 shall be traced.
Page 28
AIMING LOW BEAM HEADLAMPS Aim Low Beam Headlamps so that the top edge (the cutoff) of the high-intensity zone is at the NOMINAL VERTICAL AIM line, and the left edge of the high-intensity zone is at the vertical centerline of the headlamp. AIMING the LOWER BEAM VERTICAL CENTERLINE VERTICAL CENTERLINE...
ALTERNATIVE PROCEDURE The same procedure may be done by checking the aimer using the high beam instead of the low as a reference. AIMINGHIGHBEAMHEADLAMPS High beam headlamps and auxiliary driving lights are aimed so that the center of the high- intensity zone is located at the horizontal and straight ahead vertically.
TWO YEAR LIMITED WARRANTY The Lujan USA model 5412a headlight aimer is warranted to be free from defects in material and workmanship under normal user operation for a period of TWO YEARS from the date of purchase. The sole obligation under this warranty shall be to repair or replace any product or parts which are found by Lujan USA to be defective.
Page 31
See our other automotive shop equipment at www.lujanusa.com Lujan USA shop equipment simply makes more money for you! Thank you for purchasing the Sniper 5412a. Lujan USA provides several valuable options for your aimer. Protective cover Light intensity meter Beam elucidation filters Extended warranty...
Page 32
Professional Model Optical Headlight Aimer Lujan USA Po Box 411 Camillus, NY 13031-0411 (315) 468-4140 Headlight Aiming Made Easy..www.lujanusa.com...
Need help?
Do you have a question about the SNIPER 5412a and is the answer not in the manual?
Questions and answers