HTL DS Series, Operating Instructions Manual

20

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Symptom

Probable Cause

Action Required

Gauge 

records no 

pressure.

1. 

Gauge connection is 

loose.

2. 

Bad gauge.

3. 

Pump will not build 

pressure.

4. 

Tool seals are blown.

1.      Tighten coupling.

2.      Replace gauge
3.      Return to HTL
4.      Replace defective seals. Return to HTL.

Pump will 

not build 

pressure.

1. 

Air or electric supply 

is low.

2. 

Defective relief or 

regulator valve.

3. 

Low oil or clogged filter.

4. 

Internal leak in oil line 

from external relief valve 

to pump body.

5. 

Worn sub-plate.

1. 

Check air pressure or voltage.

2. 

Replace valve Return to HTL.

3. 

Fill reservoir and clean filter. 

4. 

Open reservoir, inspect oil line while trying to build pressure if leaking   
tighten fittings or replace.

5. 

See cylinder pressure will not build pressure above.

Motor 

slow and 

inefficient 

Sounds 

laboured. 

Slow 

to build 

pressure.

1. 

Air or electric supply 

is low.

2. 

Clogged filter.

1.      See #1 in preceding block

2.      Clean or replace filter

Pump 

heats

up.

1. 

Improper use.

2. 

Remote control is left in.

3. 

On position when pump 

is not actively in use.

1.      Have operator release advance stroke after accuracy assurance    

         levers spring forward.

2.     Turn pump off whenever not actually being used. DO NOT leave pump  

        running when tool is not in use.

Hose or tool 

fitting is 

damaged or 

leaks.

1. 

Broken or melted plastic 

outer covering.

2. 

Frayed Kevlar or steel 

strands.

3. 

Oil leaks through fibers.

4. 

Broken fittings.

1.      If underlying Kevlar or steel is still intact continue operation. Inspect 

         frequently.
2.      Cut hose in half and discard. Replace hose.

3.      Remove old fitting and replace with STEEL high pressure fittings only. 

Electric 

pump will 

not run.

1. 

Loose electric 

connections in control 

box.

2. 

Bad brushes.

3. 

Motor burned up.

1.     Replace motor components whichever is 

        necessary. Return to HTL.

2.     Change defect fuse.

Tool locks 

on to nut.

1. 

Drive segment is loaded 

when the tool is maxed 

out in torque.

2. 

Tool is operating 

backwards.

3. 

Tool is wedged under a 

fixed object.

1.      Press advance button on remote and build pressure - continue to  

         press down on remote while pulling back on one of the accuracy 

         assurance levers - release remote while continuing to hold back on  

         levers.
2.     Push advance button down - tool should immediately fall free.
3.     Remove shroud from around ratchet. Using any tool available, pry the 

        drive segment out of the ratchet and at the same time pull back on the 

        accuracy assurance levers. Tool should swing free or burnaway the 

        socket or obstruction.

19

Troubleshooting

HTL-Operating-Instructions-DS.indd   20

11/04/2017   10:15