JLG 642 Operation & Safety Manual page 123

Installation Procedure:
• Refer to "Attachment Installation" on page 5-9.
Operation:
• Raise or lower boom to appropriate height and open pipe grapple for loading
material.
• Align and center telehandler with face of material.
• Drive slowly and smoothly into material for loading. Boom extension may be required
for loading material.
• Center load on forks, tilt forks up far enough to retain load, close pipe grapple and
back away.
• Travel in accordance with requirements set forth in Section 1—General Safety
Practices.
• Open pipe grapple and unload material from forks.
Equipment Damage Precautions
• Except for lifting or unloading material, the boom must be fully retracted for all
operations.
• Do not use forks as a lever to pry material. Excessive prying forces could damage forks
or machine structure.
• Do not use pipe grapple as a lever to pry material. Excessive prying forces could
damage pipe grapple or machine structure.
• Do not attempt to load material which is hard or frozen. This could cause severe
damage to coupler or machine structure.
• Do not attempt to lift loads that are attached or connected to another object.
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Section 5—Attachments
5-29