Full Product Manual
Table of Contents Rev. 10/13/2022 LM MANUAL
Table of Contents Copyright 2020 Vestil Manufacturing Co. Page 21 of 25
Test the stability of the load in the rigging. Raise the forks slowly to minimize load movement. Raise the forks
until the load is entirely suspended from the boom. Watch the load and boom closely for either of the
following issues: 1) Load movement in rigging; or 2) Boom sliding towards tips of forks. If you notice either
issue, immediately lower the forks and adjust the rigging. Retest the stability of the load in the rigging
• While transporting a load with the boom, the load should only be 6-8 inches above the ground. Adjust
load height to avoid obstacles along the travel path.
• DO NOT exceed approximately 1.5mph (2.4kph) while transporting a load with the boom.
• Travel ONLY on smooth, level surfaces. Turn slowly and smoothly.
• If the load is unstable while suspended, DO NOT use the boom.
4. Attach the load to the boom by connecting the load to appropriate rigging. Attach the rigging to the
end hook or to both the end hook and the stabilizing hook (see diagram below).
a. Verify that the load attachment is stable;
b. Raise the load until it is elevated no more than 6-8 inches above the ground (entirely suspended from
the boom).
c. Slowly transport the load to the desired unloading location;
d. Slowly lower the load until it is entirely supported by the ground and there is slack in all rigging.
e. Disconnect the rigging from the hooks;
f. Adjust the fork position until no more than 6-8 inches above the ground;
g. Return the boom to its storage location.
NOTE: Return OBT and OBNT model booms to the fully lowered (horizontal) position by reversing
Step 4
on p. 20 BEFORE backing out of the fork pockets.
RECORD OF SATISFACTORY CONDITION
Record the condition of the lifting boom before putting it into service. Measure the length and width of the
shackle of both hooks. Include a width measurement of the mouth of the shackle, i.e. the area that receives
the shackle pin. Record your measurements. Measure the mouth of both hooks and record the measurements.
Thoroughly photograph the unit from multiple angles. Include close range photos of all labeling, the shackles
and shackle pins, the fork pockets/tubes, safety chain and its snap hook and cold shut, support leg, and welds.
Collate all photographs and writings into a single file. Mark the file appropriately to identify it. The file provides a
record of the device in satisfactory condition. Compare the results of all INSPECTIONS
(see p. 22) to this RECORD
to determine whether the unit is in satisfactory condition. If the boom is not in satisfactory condition, repair it
before returning it to service. Purely cosmetic changes, like damaged paint/powdercoat, do not constitute
changes from satisfactory condition. However, touchup paint should be applied to all affected areas as soon
as cosmetic damage occurs to prevent rusting and corrosion. If left unaddressed, rusting/corrosion will alter the
device from satisfactory condition and could make it unsafe to use.
LOAD TESTS
After creating a RECORD OF SATISFACTORY CONDITION and before using the boom for the first time, a
qualified person should conduct a load test. The test load should be 125% of the rated load (capacity) of the
lifter. For instance, if the rated load (capacity) is 1,000 lb. (454.5kg) the test load should be 1,250 pounds
(568.2kg). Raise the load off of the ground until it is entirely suspended from the boom. Leave the load
suspended for a few minutes. Return it to the ground and unload it. Perform a Monthly Inspection as described
in the
INSPECTIONS section (p. 22). The boom should undergo load testing immediately after it is repaired,
modified, or altered. Never modify or alter the boom without first receiving written approval from Vestil.
NOTE: If your boom is used with a lift truck whose capacity is less than 125% of the rated load of your boom PLUS
the weight of the boom, then load testing as described above should not be performed. Instead, the boom
must be rerated (capacity reduced) and be tested with an appropriate load weight for your lift truck. The
boom must also be relabeled to reflect the rerated capacity. Mark/label the truck to identify the boom, show
End hook
Stabilizing
hook
Shackle
Shackle
Support
leg
Cold shut