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Danfoss T-420 Crimp machine operator´s manual  December 2022

Operating instructions  

1. 

Measure the appropriate insertion depth and scribe a  

T-marking on the hose. Insert the hose into the fitting.  
The socket should cover a portion of the depth marking  
or be fully bottomed out into the fitting.

3.

 Insert hose assembly from bottom between collet 

halves. Our optimized tooling provides built in fitting 
locators, ensuring correct alignment for optimal crimp 
position.

5.

 Release activating lever. Pusher will automatically retract 

and pusher halves will open. Remove factory quality 
crimped hose assembly and visually inspect.

6. 

To ensure a proper crimp has been completed, measure 

the nominal crimp diameter as shown in figure on page 8

2.

 To establish the crimp settings and tooling needed, 

access the PowerSource Crimp Spec Tool from the Tools 
Menu on PowerSource. 

Select proper size collet for hose type and size being 
crimped. Apply grease to outside of each collet segment.
Insert collet in cavity of base plate. Place spacer ring on 
top of collet if called for in the crimp spec.

4.

 Pull activating lever down. Pusher halves will close.

Continue to pull activating lever down (pump will activate) 
until pusher contacts the base plate. The crimp is complete.

Summary of Contents for T-420

Page 1: ......

Page 2: ...P WORK AREA CLEAN Cluttered areas and benches invite accidents 13 DO NOT OPERATE WITHOUT THE BASE ADAPTER RING IN PLACE Safety instructions T 420 Crimp machine WARNING Danfoss s hose and Danfoss hose...

Page 3: ...amp fused circuit Pump wired for 220 volts single phase T 421U 110 Electric pump 110 volt For dimensional data other than voltage information refer to T 421U see above T 421U 110CSA CSA approved Note...

Page 4: ...4 The T 421U Electric Pump mounts on the right side of the cabinet Predrilled holes align the pump Insert bolts through top of cabinet Washers and nuts are installed from underneath Tighten STEP 5 Rem...

Page 5: ...1U power unit on mounting surface to the right and slightly behind the T 420 1 press 5 Mark mounting hole location for power unit and drill holes in mounting surface 6 Replace power unit and align hol...

Page 6: ...power cord into 220 volt 60 cycle single phase outlet It is recommended that the pump be on an individual 15 amp fused electrical circuit If using T 421U 110 pump plug power cord into 110 volt 60 cycl...

Page 7: ...t and pusher halves will open Remove factory quality crimped hose assembly and visually inspect 6 To ensure a proper crimp has been completed measure the nominal crimp diameter as shown in figure on p...

Page 8: ...mped portion of the hose end 2 Place the caliper in a position to allow for a measurement across the pressed flat portion of the crimp 3 See crimp diameters in crimp specifications Maintenance Collet...

Page 9: ...rom bottoming Remove 3 8 NPTF plug from port above check valve and install 6000 PSI pressure gauge With 6000 PSI pressure gauge in place operate unit to full crimping position Gauge should read 4000 4...

Page 10: ...crimp pressure blows fuse Pump unload valve stuck shut Replace pump Motor runs Pusher advances but doesn t develop final crimp pressure Relief valve leaking Shuttle valve leaking Relief valve set low...

Page 11: ...lb T 420 LA Light assembly T 420 LS Light switch T 420 P Pusher set 2 with wear plates and screws T 420 S Press shroud with decals T 420 26 Insert base plate T 420 G Linkage assembly T 420 2R Rack T 4...

Page 12: ...y on orderprovided that such alterations can be made without subsequent changes being necessary in specifications already agreed All trademarks in this material are property of the respective companie...

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