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MODEL 44-50
VIBRATORY
DRIVER/EXTRACTOR
II.
PREPARATION FOR OPERATION
B. SAFETY PRECAUTIONS (CONTINUED)
36. Rounded or damaged bolt heads or nuts should be replaced so that proper torque
values may be obtained. Proper torque values are necessary to prevent parts on this
equipment, leads and crane boom from loosening and falling. Refer to Torque Chart, in
this manual, for proper values.
37. Do not use the vibrator clamp to move piles we recommend using a safety line in case
of loss of hydraulic pressure.
38. Never clamp vibrator to pile and disconnect the crane line. Loss of hydraulic pressure
could cause vibrator to fall. Lay vibrator down when not in use.
39. When extracting piles, always attach a safety line between pile and crane hook.
40. When extracting piles, check crane load/radius tables to be sure crane capacity is
adequate for maximum allowable extraction pull.
41. When extracting piles, or any other driving operations, always be sure that the crane
line is aligned with the centerline of the pile. Do not side load crane boom or vibrator.
Dangerous crane boom, or vibrator, damage may result.
42. When extracting piles, do not exceed the capacity of the vibrator suppressor. Continued
operation against the safety stops will cause damage to the crane boom and the vibrator.
43. Never induce line pull on a vibrator before starting the unit in vibration. Always start
both driving and extraction of piles with a slack line.
44. Keep hands away from clamp jaws.
45. Keep hands away from vibrator suppressor during operation. Clearances may change
causing pinch points.
46. Do not run vibrator unless clamp jaws are closed.
47. Use tag line to control vibrator whenever possible.
48. When driving "batter" piles, insure that the leads, and crane boom, have sufficient
bending strength to handle the worst case load. Consult J&M.
REMEMBER, SAFETY IS EVERYONE'S BUSINESS.
II-3
OPERATING
INSTRUCTIONS
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