Mueller
®
H-704 Hydraulic Power Operator
1. OPERATING INSTRUCTIONS
CAUTION: Hydraulically driven
power tools are not generally
insulated against coming in contact
with sources of electrical current.
Take necessary precautions if
sources of electrical current are
nearby.
WARNING: Operate this machine
below the maximum rated pressure
specified.
A. Be sure to read the Mueller Operating
Instructions for the Mueller drilling
machine that is being powered by the
H-704 operator.
B. Install drilling machine on pipe
according to the drilling machine’s
operating manual.
C. After the drill or pilot drill has been
positioned at the pipe according to
the machine instructions, attach the
operator to the machine.
A. Turn on the hydraulic unit and
check the hydraulic pressure. Note
maximum pressure permissible in
the Specifications section of this
instruction sheet (page 1).
B. Momentarily activate the on/off lever
from the neutral position by pulling it
toward the operator handle to assure
the drill or shell cutter is turning in
the correct direction. It should turn
clockwise when observed from the
operator end of the drilling machine.
CAUTION: Moving the lever away
from the operator handle will reverse
the turning direction and could
damage the tools during standard
drilling or cutting operations.
C. Once the correct turning direction
has been verified, activate the on/off
lever by pulling it toward the operator
handle and conduct the drilling
operation according to the drilling
machine operating manual.
2. CHECK THE DRILLING MACHINE SET UP
A. For drilling operations: Once the
drilling is completed, follow the
machine operating instructions to
clear the tools from the pipe, return
the drilling machine to its rear most
position, and remove the operator
from the machine.
B. For drilling and tapping operations:
Once the tapping operation is
completed, follow the machine
operating instructions for reversing
the operator, clearing the tools from
the pipe, returning the machine to its
rear most position, and removing the
operator from the machine.
3. DISCONNECTING HYDRAULIC POWER OPERATOR
Reliable Connections
TM
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The trademarks, logos and service marks displayed in this document herein are the property of Mueller Co., LLC, its affiliates or
other third parties. Products above marked with a section symbol ( § ) are subject to patents or patent applications. For details,
visit www.mwppat.com. These products are intended for use in potable water applications. Please contact your Mueller Sales or
Customer Service Representative concerning any otherapplication(s).
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