
Danfoss ET4000 Crimp Machine Operator’s Manual
AQ439269047772en-000101 © Danfoss ET4000 Crimp Machine Operator’s Manual | 2023.02. | 3
Read and understand the operator’s 
manual before attempting to 
operate any equipment.
 WARNING
Aeroquip hose, hose fittings and 
assembly equipment should be 
used only with other Aeroquip 
hose, hose fittings and assembly 
equipment and Weatherhead 
hose, hose fittings and assembly 
equipment should be used only 
with Weatherhead hose, hose 
fittings and assembly equipment. 
Do not combine or use Aeroquip 
or Weatherhead hose, hose fittings 
and assembly equipment with 
each other, i.e. Aeroquip hose 
with Weatherhead fittings, or with 
hose, hose fittings or assembly 
equipment supplied by another 
manufacturer.
Danfoss hereby disclaims any 
obligation or liability (including 
incidental and consequential 
damages) arising from breach 
or contract, warranty, or tort 
(under negligence or strict liability 
theories) should Aeroquip or 
Weatherhead hose fittings or 
assembly equipment be used 
interchangeably or with any hose, 
fittings or assembly equipment 
supplied by another manufacturer, 
or in the event that product 
instructions for each specified hose 
assembly are not followed.
 WARNING
Failure to follow process and 
product instructions and limitations 
could lead to premature hose 
assembly failures, resulting in 
property damage, serious injury or 
death.
Aeroquip and Weatherhead fitting 
tolerances are engineered to match 
Aeroquip and Weatherhead hose 
tolerances. The combination or 
use of Aeroquip or Weatherhead 
hose and hose fittings with each 
other, i.e. Aeroquip hose with 
Weatherhead fittings, or with hose 
or fittings supplied by another 
manufacturer may result in the 
production of unreliable and/
or unsafe hose assemblies and 
is neither recommended nor 
authorized by Danfoss.
Safety Instructions
1. PREVENT UNAUTHORIZED 
OPERATION.
Do not permit anyone to operate 
this equipment unless they have 
read and thoroughly understand 
this manual.
2. WEAR SAFETY GLASSES.
3. AVOID PINCH POINTS.
Do not rest your hand on the crimp 
ring. Keep your hands clear of all 
moving parts. Do not allow anyone, 
other than the operator, close to the 
equipment while it is in operation.
4. MAINTAIN DIES WITH CARE. 
Dies used in the ET4000 crimp 
machine are hardened steel, 
offering the best combination of 
strength and wear resistance for 
long life.
Hardened dies are generally brittle 
and care should be taken to avoid 
any sharp impact. Never strike a die 
with a hardened instrument.
5. USE ONLY SPECIFIED 
AEROQUIP/WEATHERHEAD 
PRODUCTS. 
Make hose assemblies using only 
Aeroquip and Weatherhead hose 
and fittings specified for this 
assembly equipment.
6. VERIFY CORRECT CRIMP 
DIAMETERS.
Check and verify correct crimp 
diameters of all fittings after 
crimping. Do not put any hose 
assemblies into service if the crimp 
diameters do not meet Danfoss 
crimp specifications.
7. MAKE SURE ALL DIES ARE 
COMPLETELY IN PLACE 
and the cage is positioned 
properly on the pressure plate.
8. DO NOT OVER PRESSURIZE. 
Do not exceed the 10,000 psi 
hydraulic pressure supplied to the 
machine.
NOTE: All components used to 
connect the pump and crimp 
cylinder must meet the criteria 
set forth in the Material Handling 
Institute Specification #IJ100 for 
hydraulic jacking applications.
9. DIE CHANGE. DO NOT 
INSERT/REMOVE DIES 
WHILE THE POWER IS ON OR 
MACHINE IS IN OPERATION.
10. SECURE THE EQUIPMENT TO 
A STABLE WORK SURFACE.
Prior to operation, secure the crimp 
machine to a stable work surface 
to prevent the equipment from 
tipping. See pages 5-6 for mounting 
instructions.
11. UNPLUG THE POWER 
SUPPLY WHEN NOT IN USE.
12. KEEP WORK AREA CLEAN.
Cluttered areas and benches invite 
accidents.
13. DO NOT OPERATE WITHOUT 
THE BASE ADAPTER RING IN 
PLACE.
!
Safety Instructions
!