Troubleshooting / Fault Finding

If your having problems with your John Hunt Machine, please see below some common faults and what action to take?

 

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Little/Medium Champion Fault Finding

Fault or Issue

Machine Operation Difficult

Die Equipment Difficult to Use

Die Equipment Not Heating

Die Equipment Not Releasing Containers

Lever Does Not Return To Upright Position

Not Pressing to Full Depth

Action To Be Taken

Apply oil to the 4 oil wells and grease main downshaft. Clean with WD40 first. DO NOT use vegetable oil. Use an approved food lubricant i.e Foodlube

Dissemble die equipment. Clean all surfaces with a stiff brush. Apply grease to metal on metal surfaces. DO NOT immerse die equipment in water. Always Clean and dry after use.

Still Faulting

Link Arm/Link Pins could be worn or distorted & need replacing.

Send to JH for Diagnostics

Element Fault/Element Power Cable

Air Release: Check Air Valve and clean where appropriate. Increase Air pressure where possible. Check pipe system for leaks.

Non Air Release: Remove, clean & grease knock off pins.

Send to JH for Diagnostics

Check Disc Spring. Lubricate Main Downshaft

Ensure rotary handle is held back through full travel of the lever arm.

Link Arm/Link Pins could be worn or distorted & need replacing.

8 Station Fault Finding

Fault or Issue

Not Blocking Properly

Underside of foil container "Sucking Up"

Die Equipment Not Releasing Containers

Action To Be Taken

Dissemble die equipment. Clean all surfaces with a stiff brush. Apply grease to metal on metal surfaces. DO NOT immerse die equipment in water. Always Clean and dry after use.

Check Air Valve. Check Air Connections. Replace Necessary.

Check Air Valve as above. Knock off ring not sliding freely. Knock off plungers faulting or damaged. Clean and Lubricate Knock - off ring. Replace parts as necessary.

Still Faulting

Ensure knock-off ring slides freely on top body casting. Check springs in good condition

Contact JH for Diagnostics

Contact JH for Diagnostics

Incorrect heat setting. Adjust and test again.

Not cutting off pastry cleanly

Contact JH for Diagnostics

Unsatisfactory Release of product

Die Equipment Not Heating

Element Fault/Element Power Cable

Blocking "Thin or thick"

Machine needs re-centralising

Contact JH. A specific tool is available for this.

Remove brass nut at base of centre spindle. Remove shaft & springs. Check replace as necessary and reverse procedure.

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01204 532 798

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