Enerpac ZA4T-Series User Manual
Enerpac Pumps

1
Repair Parts Sheets for this product are available from the 
Enerpac web site at www.enerpac.com, or from your nearest 
Authorized Enerpac Service Center or Enerpac Sales offi
ce.
1.0 IMPORTANT RECEIVING INSTRUCTIONS
Visually inspect all components for shipping damage. Shipping 
damage is not covered by warranty. If shipping damage is found, 
notify carrier at once. The carrier is responsible for all repair and 
replacement costs resulting from damage in shipment.
SAFETY FIRST
2.0 SAFETY ISSUES
Read all instructions, warnings and cautions 
carefully. Follow all safety precautions to avoid 
personal injury or property damage during system 
operation. Enerpac cannot be responsible for damage or injury 
resulting from unsafe product use, lack of maintenance or 
incorrect product and/or system operation. Contact Enerpac 
when in doubt as to the safety precautions and operations. If you 
have never been trained on high-pressure hydraulic safety, 
consult your distribution or service center for a free Enerpac 
Hydraulic safety course.
Failure to comply with the following cautions and warnings could 
cause equipment damage and personal injury. 
A CAUTION is used to indicate correct operating or maintenance 
procedures and practices to prevent damage to, or destruction of 
equipment or other property.
A WARNING indicates a potential danger that requires correct 
procedures or practices to avoid personal injury.
A DANGER is only used when your action or lack of action may 
cause serious injury or even death.
WARNING: Wear proper personal protective gear when 
operating hydraulic equipment.
WARNING: Stay clear of loads supported by hydraulics. 
A cylinder, when used as a load lifting device, should 
never be used as a load holding device. After the load has 
been raised or lowered, it must always be blocked mechanically.
WARNING: USE ONLY RIGID PIECES TO HOLD 
LOADS. Carefully select steel or wood blocks that are 
capable of supporting the load. Never use a hydraulic 
cylinder as a shim or spacer in any lifting or pressing application.
DANGER: To avoid personal injury keep hands 
and feet away from cylinder and workpiece 
during operation.
WARNING: Do not exceed equipment ratings. Never 
attempt to lift a load weighing more than the capacity of 
the cylinder. Overloading causes equipment failure and 
possible personal injury. The cylinders are designed for a max. 
pressure of 700 bar [10,000 psi]. Do not connect a jack or cylinder 
to a pump with a higher pressure rating.
Never set the relief valve to a higher pressure than the 
maximum rated pressure of the pump. Higher settings 
may result in equipment damage and/or personal injury.
WARNING: The system operating pressure must not 
exceed the pressure rating of the lowest rated component 
in the system. Install pressure gauges in the system to 
monitor operating pressure. It is your window to what is happening 
in the system.
CAUTION: Avoid damaging hydraulic hose. Avoid 
sharp bends and kinks when routing hydraulic hoses. 
Using a bent or kinked hose will cause severe back-pressure. 
Sharp bends and kinks will internally damage the hose leading to 
premature hose failure. 
 Do not drop heavy objects on hose. A sharp impact 
may cause internal damage to hose wire strands. 
Applying pressure to a damaged hose may cause it 
to rupture.
IMPORTANT: Do not lift hydraulic equipment by the 
hoses or swivel couplers. Use the carrying handle or 
other means of safe transport.
Index:
 English . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6
Français . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-12
Deutsch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-18 
Italiano . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19-24 
Español . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25-30 
Nederlands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31-36
Portuguese . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37-42
Finnish . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43-48
Norwegian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49-53
Swedish. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54-58
中文 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59-63
日本語 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64-68
Русско. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69-74
ZA4T Air-Hydraulic Torque Wrench Pump
Instruction Sheet
L2919 Rev.
B 10/13
