2-5
CAUTION
Keep hands out of Anti-Two-Block mechanism. Serious injury can result from moving
parts.
17. Avoid two-blocking.
A. Stop raising hoist line before downhaul or hook block strikes boom tip plates.
B. Pay out hoist line while extending boom.
C. Maintain clearance between downhaul weight or hook block and boom tip
while booming down.
D A N G E R
Two-blocking will abruptly stop boom lowering and boom swing as well as hoist
and extend. If the boom is moving fast, this will cause the load to bounce or swing,
which could cause loss of control of load or tipping.
18.The amount of counterweight supplied with this crane should never be changed.
Unauthorized addition of counterweight in the field to increase lifting ability constitutes a
safety hazard.
19. Always keep crane boom at least 10 feet (3.0 m) away from electric power lines. (See
chart on side of turntable for boom clearance).
20. If boom should accidentally contact a power line, keep ground personnel away from crane.
Stay in the crane until the power source is de-energized. Move the crane away from
electrical hazard if this does not cause new hazards. If it is absolutely necessary to leave
the crane, jump clear of the crane with both feet together. Hop away from the crane with
feet together, as well. The ground surface may be energized.
21. Do not operate outside during thunderstorms. Avoid all lightning strike opportunities.
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