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Base Section 5 – Procedures
5.3-2 Pothole Compression Rod
Replacement
It is important that new compression rods are adjusted
to the correct height for the pothole protection system
to work correctly.
Compression rod is too long
▪
Risk of the compression rod to be bent when the
scissor stack comes down.
▪
The machine may not drive at all at certain
heights, and the Skycoded display will show
"POTHOLE - DRIVELOCKED!"
Compression rod is too short
▪
The pothole bar will not fully retract.
Adjust the compression rod
1. Loosen the lock nut and adjust the carriage bolt
until the overall length of the compression rod
assembly matches the dimension shown below.
2. The overall length is measure from the tip of the
carriage bolt to the bottom of the compression
rod.
Carriage
bolt
Lock
nut
Compression
rod
42 cm - 42.5 cm
(16-9/16” - 16-3/4")
3. Hold the carriage bolt in place and tighten the
lock nut.
4. Do a final check of the overall length and make
sure it is still correct.
Test the compression rod
1. Raise the platform to the approximate height
shown below and try to drive:
▪
SJ3215/19 - 2.2 m to 2.8 m (7' 4" to 9' 2")
2. If the MEWP will not drive and the Skycoded
display shows “POTHOLE - DRIVELOCKED!”,
make sure the overall length of the compression
rods are correct, and the pothole limit switches
are installed correctly (5.3-3 Pothole Limit
Switches (LS1 & LS2) Replacement and
Adjustment).
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