capacity will be reduced. The cutting and shaping
of this machine, you should study the operator's manual
and practice on the machine in your shop, if it has one
action is provided by tools mounted in tool holders at
the front of the machine. The machine has two speeds
of operation: slow and fast.
PULLMAX SAFETY.--The Pullmax is a
relatively simple machine to operate and does not
When the motor is running at slow speed, the
present any special safety requirements. However, you
cutting tool makes 500 to 1,000 strokes per minute.
need to ensure that the tooling is installed correctly. The
Slow speed is used to cut heavy gauge metal.
machine cuts using a reciprocating action that causes
abnormal vibration in the workpiece. Therefore, do not
When the motor is running at high speed, the cutting
operate the machine for extended periods of time
tool makes 1,000 to 2,000 strokes per minute. High
without taking a break from machine operations. You
speed is used to cut thin gauge metal.
can seriously damage your hands and arms by exposing
PULLMAX OPERATIONS.--The Pullmax has
them to continuous vibration.
the capacity to perform many specific operations
depending on the tools (blades) installed in the machine.
shipfitter shops are equipped with machines capable of
Figures 13-35 and 13-36 show two of several different
cutting plate up to 3/8 inch thick, as shown in figure
tools made for the Pullmax. We will be discussing the
13-33. As in all machines, the thickness capacity is
tools used for shearing (cutting) (fig. 13-34).
given for mild steel. If using alloy steel, the thickness
Figure 13-33.--Universal Pullmax machine.