KIT-SERVICE 5444662 - Caterpillar

Boom Verification
Accuracy of the boom calculations can be verified using the pin centering kit, tape measure, and a string line with bubble level or a self-leveling, rotating laser mounted to an elevating tripod. Using the string line or laser plane as the horizontal reference, position pin "B" at the same elevation as pin "A". Read the "Boom Angle" from the "CGC Angles" screen. The boom angle should be zero degrees.Note: "Boom Angle" is the angle of the boom with respect to gravity.If pins (A) and (B) are not aligned, then one or more of the additional boom rotary position sensor calibration values may be affecting the result. A large range of calibration angle values may indicate a rotary position sensor that is not aligned with the linkage pin. The calibration angle value determined from the "Front Linkage Position Sensor" calibration may be deleted if it differs significantly from the other values in the table.If repeated attempts to recalibrate the boom sensor, does not provide expected results:
Use a tape measure to confirm actual boom dimensions match the software configuration by checking the distance from pin "A" to pin "B"
Perform body sensor calibration, front linkage position sensor calibration, and then the boom rotary position sensor calibration
Remove boom sensor from mounting plate and confirm that the mounting plate is aligned with the boom pin. If the plate is not centered, use the centering tool to realign the plate with the boom pin. Refer to REHS7312-00.
Reassemble the sensor and repeat the "Front Linkage Position Sensor" calibration and "Boom Sensor" rotary position sensor calibration.Note: The calibrations must be repeated whether the mounting plate was moved or not.For more information on mounting plate alignment refer to Special Instruction, REHS7312, "Instructions for Installing Rotary Position Sensor for Cat® Grade Control on Certain Series E Excavators"Stick Verification
Note: Do not verify the stick, until the boom accuracy is satisfactory.There are two options for verifying stick accuracy. You may use a tape measure and a square, or a self-leveling laser, receiver, and tape measure.To verify the stick by a tape measure and square, follow these steps.
Park the machine on a solid, level surface.
Navigate to the "CGC Distances" screen.
View the "Length A-G" parameter.
Pull the tape measure from pin (A) to pin (G), using a framing square or combination square to account for the taper in the width of the linkage from the boom pin out to the stick pin.If calibrated correctly, the distance measured should match the distance shown on the display within 5 mm (0.2 inch) to 10 mm (0.4 inch).
Illustration 36 g03328002
"CGC Distances" Screen
"Length A-G" is the straight-line distance from pin (A) at the base of the boom to pin (G) at the end of the stick.To verify the stick by a self-leveling laser, receiver & tape measure, follow these steps.
Table 2
Test Bucket Dimensions
"G" to "H" 0.001 m (0.003 ft)
"G" to "I" 0.000 m (0.00000 ft)
"G" to "J" 0.001 m (0.003 ft)
"G" to "Q" 0.001 m (0.003 ft)
"J" to "Q" 0.001 m (0.003