National Crane PUBLISHED 04-26-2019 CONTROL # 113-09 4-9
600E2 OPERATOR MANUAL SET-UP
8. Operate boom and turn functions very slowly and
carefully when using a boom extension since extensions
can increase boom length by 50%.
9. Area where extension swings around must be clear of
obstructions and power lines when stowing and
unstowing extension.
10. Use safety glasses when necessary.
11. Do not extend/retract boom unless boom is horizontal
when stow pin A and extension swing pin B are removed
during stowing or unstowing procedures.
12. Always put spring clips in pins to ensure that they will
stay in place.
13. When the extension is stowed, the boom can not be fully
retracted if a boom tip attachment option is installed.
Manually Extendable Boom Extension:
1. Extension retaining pin, E, must always be installed
when operating.
2. All swing around (stow and unstowing) operations shall
be done with extension retracted and pinned.
3. The extendable section may slide out of 1
st
section
extension to the mechanical stop when pin E is
removed. Keep personnel clear of area.
CAUTION
• Boom tip attachment can contact extension in stowed
position when boom is fully retracted.
• Contact can cause damage to boom extension
system and extension stow system.
• Boom must be left extended 0.5 ft (0.2 m) to prevent
contact.
• Boom attachment must be removed for retracted
boom lifting operations.
A Stop Pin B Extension Swing
Pin
C1 Extension Deployment
C2 Extension
Deployment
D Stow Loop F Load Line Attachment Point
Extension in Stow Position
Fo
r
Reference
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