Easy Lift Equipment EAGLE-GRIP EL4 Series, Руководство по эксплуатации

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properly holding a drum or drums, the problem may lie, and usually does, in one of the
four clamping mechanisms (figure # 7, Clamp Assembly # 8403). The operator should
inform a service technician of their findings noting the particular clamp that is not
working smoothly or is not engaging the drums properly and with what frequency or
pattern. This will allow for more detailed inspection of that clamping mechanism
during PM and MRO procedures. Rarely will the attachment see “random”
malfunctions. Typically, one or more clamping mechanisms will be the cause of the
problem and observation and reporting to maintenance can forestall additional
difficulties.
7.) Inspect each entering guide plate (figure # 16, p/n 2408) to ensure that all springs
are in place and that pins attaching guide to the head frame are properly in place and
secure. Manipulate the entering guide plates from side to side by hand to ensure slight
movement exists in each guide plate and that no binding is occurring. Binding of the
guide plates will cause damage to the drums as the attachment is lowered onto the drums
for pick-up.
8.) There are two pawls in the attachment (figure # 5 & # 7, P/N 7406 and 7407
respectively). The # 7406 is the ratchet pawl. This pawl, on the downward motion of
the attachment onto the drums, is engaged and allows the spider assembly (figure # 13,
clamp assembly # 8402) to drop properly and further allows the four jaw mechanisms to
release the jaws so they can engage the drums on the next consecutive uplift. The
holding pawl, # 7407 captures the spider assembly after the drums have been lowered and
released, preventing the clamp jaws from engaging the drums on the next uplift. This is
the principle that allows the attachment to alternately pick-up and release the group of
four drums with each lift & lower cycle. If the drums either fail to engage or fail to
release on the up/down motion, one or both of the pawls (# 7406 & 7407) may be worn,
bent or otherwise damaged. While all inner parts of these attachments are hardened to
34C on a Rockwell scale, they can be worn down or damaged through heavy use. If the
drums do not release properly without having to forcefully lower the attachment up and
down several times, the holding pawl has likely bent or broken. Similarly, if the drums
do not properly engage, the ratchet pawl may be the problem. Possible damage to the
pawls is difficult to tell with the naked eye without removing one or more of the
clamping assemblies (figure # 6), but if this difficulty is being experienced, it is possible
that a problem has occurred with one or both pawls in the attachment
9.) Finally, visually inspect the actual upper and lower jaws in each of the four
clamping mechanisms to ensure that no surfaces are broken or otherwise worn, causing
potential pick-up and release problems. If jaws are broken or cracked, do not use the
attachment. Have the attachment serviced by a qualified maintenance technician
immediately.
EASY LIFT EQUIPMENT
2 MILL PARK CT
NEWARK, DE. 19713
Phone: 302-737-7000: 800-233-1800
FAX: 302-737-7333
WEBSITE: www.easylifteqpt.com
EMAIL: sales@ easylifteqpt.com
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