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Scissors inspection Section 1 – Scheduled Maintenance
6
Scissor pin inspection (B)
WARNING
Units that show signs of damage must be
immediately removed from service and repaired
by a qualified technician. Speak to the Skyjack
service department for directions on how to repair
the unit.
1. Do an inspection of the scissor pin connections.
Look for signs of damage on the pins and scissor
arms. These signs can include:
▪
Noise can be heard from seized pins.
▪
Rust near the pin joint
▪
Cracks in welds of adjacent metals
▪
Dust or metal shaving from worn components
▪
Broken or missing pin retainer bolts
▪
Broken or missing pin retainers
▪
Rotated pin
▪
Elongated or enlarged pin hole
2. Remove damaged pins and bushings. Do an
inspection of the scissor bore after removing the
applicable pins and bushings. Look for signs of
damage, elongation and ovality of the hole.
3. If there is no structural damage to the scissor
arms, replace the pins and bushings with new
components.
Examples of pivot pin connections with no
damage:
▪
No rust
▪
Pin has not rotated
▪
Area is clear of dust or metal shavings
▪
Pin retainers are installed
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