Chalk (Item 28, Appendix C)
This task covers:
a. Head Light Aim Check
b. Head Light Adjustment
c. Follow-On Maintenance
Engine OFF, (TM 9-2320-364-10)
Wheels chocked, (TM 9-2320-364-10)
Set tire pressures to highway,
Tools and Special Tools
Tool Kit, General Mechanics: Automotive
(Item 74, Appendix G)
7-44. HEAD LIGHT ADJUSTMENT.
Head Light Aim Check.
Ensure truck is parked on level ground.
Ensure skid plate is 18 in. (46 cm) from flat surface (1). Apply parking brake.
Ensure truck is empty before checking aim of head lamps.
Using chalk, draw vertical line (2) on flat surface from each end of skid plate (3).
Measure in 9 1/2 in. (24 cm) from each vertical chalk line (2) and draw small vertical chalk line (4).
Measure up 62 in. (157.5 cm) from ground and draw horizontal chalk line (5) crossing vertical chalk
line (4) making a cross.