Manitowoc Engineering Co.
When traveling a machine with boom, boom should be
at an angle that will balance the machine. (Balanced
condition occures when all house rollers are resting on
roller ring surface and hook rollers can be turned by
hand).
When requiring to travel with boom at a low angle take
caution to travel slowly as excessive bounce of the
boom can create undue stresses on the boom and rig-
ging resulting in fatigue.
BOOM REPAIR RECOMMENDATIONS
Boom lacings (only) can be replaced in the field if:
1. The lacings are ordered from Manitowoc Engineering
Co.
2. The welding procedures in Service: Bulletin No. 96
"Boom Welding and Repair" are followed.
3. The wo[k is performed by,a competent firm and by a
welder certified to weld on the particular type fo steel
involved.
CAUTION
Repairs to main chord members are
NOT allowed. Be sure main chords are undamaged
before attempting any repairs.
i
• i i ,
Refer to Folio No. 823 in Maintenance Section for
necessary information needed before attempting to
order or repair boom.
NOTE:
Manitowoc Engineering Co. cannot be held
responsible for any field repairs of the boom.
,I
'lJ' i
FOLIO 764-4 11-13-72 (Rev. 10-22-81)
395143
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