ITW Alpine ALS 4.0 XE - 6.1 Incorrect Homing;Cannot Home the Machine; 6.2 Centerline is Off; 6.3 Length is not Correct

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ALS 4.0 XE
PRODUCT MANUAL
EN
6. Troubleshooting
CONDITION CAUSE CHECK CORRECTION
6.1 Incorrect Homing/
Cannot Home the
Machine
No power The green LED which indicates
that the power is on should be
illuminated
Press the button labeled “power
reset” (Figure 1)
Axis with fault Call Alpine Equipment Customer
Service.
Fault codes must be found using
Alpine Equipment Customer
Service troubleshooting tools in
order to properly resolve this issue.
Axis is blocked Visually inspect A1, T1, Z1, B1 (if
equipped) for blockage.
Remove blockage and restart
homing process.
6.2 Centerline is O
Warped lumber Visually inspect lumber. Re-cut with lumber that is straight.
T1 axis homing Measure the centerline using a
framing square (Figure 128), the
measurement should be 1 ¾ in.
from the back fence.
Try to home T1. Then, re-calibrate
the axis following the instructions
in Section 4.7.
6.3 Length is not Correct
(The length tolerance of the
ALS 4.0 is ± 1/16 in.)
Length calibration Check the cut length of the board
using a tape measure.
Re-calibrate L1 & L2, following the
instructions in Section 4.9.
L1 & L2 clamps not operating
properly
The clamp should come down
within 1 ¼ in. of the L1 & L2 belts.
Conrm that the rod end of the
cylinder remains intact.
Tighten screws on the cylinder if
they appear to have backed out of
their holes.
Replace cylinder if damaged or
inoperable.
Check belt tension Section 4.8 covers the belt
tensioning procedure.
Follow the tensioning procedure,
cut a board, and check the length
for correctness.
Mechanical blockage Visually inspect for mechanical
blockage, especially near the LPS
sensors.
Remove blockage and re-check
length.
Clean sensors Locate emitters and receivers on L1
& L2 drives.
Wipe clean with a cloth, then use
glass cleaner on the face of both
the emitter and receiver.
Wet or icy lumber Visually inspect lumber for
dampness or ice.
Remove wet or ice covered board
from the infeed queue allowing it
to dry completely before feeding it
into the saw.
Low Air pressure
(Air pressure should read between
80-90 psi.)
Locate the regulator on outfeed of
saw near the bottom of the outside
of the saw cabinet and check the
pressure.
Listen for air leaks.
Adjust the regulator.
If an air leak is found it should be
repaired immediately, call Alpine
Equipment Customer Service if
assistance is required.
Worn belts Visually inspect belts for wear or
cracking.
Rotate belts to even wear, or order
new belts from Alpine Equipment
Customer Service.