Troubleshooting Guides | Sealey

Troubleshooting Guide

Hydraulic Jacks

According to current legislation, no hydraulic jack needs a test certificate. Broadly speaking, if a lifting device hoists from above then the Health and Safety at Work Executive Test Certificate is required. If it lifts from below, then such a certificate is not required by law. Please be aware that it is within the rights of insurance companies to insist that a test certificate is provided for any product they so choose. This is quite distinct from what is required by law. Any customer requiring a test certificate for a jack in order to satisfy their insurance company can obtain such a certificate by having the product tested by any authorised lifting gear testing station. These companies can be found by searching "Lifting Gear" in a directory or on-line.

Is Your Hydraulic Jack Malfunctioning?

First, check that the handle is correctly located into the jack socket. In some cases you can remove the screw pin and check if there are any marks on the handle near the slot. If the material is scored, then you can be sure the handle was incorrectly located and this could cause the jack to drop slowly. Correct instructions for locating the handle are shown on the handle itself. The pin must be located in the slot.

Test For Air In The System

With all hydraulic jacks test for air in the system, or dirt on the valve seat by opening the valve and pumping the hydraulic mechanism 10 or 20 times with the valve open. This will flush oil over the valve seat and purge air from the system at the same time. Very often this is all that is required.

How To Bleed Your Jack

Structural damage to a jack very rarely occurs and when it does it is generally due to movement of load or unsafe location of saddle or wheels. In these cases, the customer's insurance company should be notified in writing immediately. Please be aware that accidental damage cannot be considered as a warranty matter.

Sealey Trolley Jack Oil Top up Procedure

Sealey Trolley Jack Bleeding Procedure

Hydraulic Cranes

All hydraulic cranes, when delivered by us, are packed with Declaration of Conformity, which refers to British Standards ref BS EN 12644 and this is evidence of the type of approval for the crane.

A safety at Work Inspector or insurance assessor can ask for a load test certificate. Such a load test is at the customer’s expense and should be arranged locally. A serial number marked on the crane is now no longer applicable and if required may be added at first test.

Mig Welders

Regular Changing of Consumable Parts
Please be aware that MIG welders require regular changing of consumable parts. Tips, gas cups and liners particularly require regular replacement. If they are not changed, undue stress can be placed on to other components in the machine. Before returning machines for repair, please check these consumable parts are in good working order. In some cases it may only require a replacement consumable part to put the machine back into a first-class working condition again. Accidental damage and normal wear and tear to torches and hoses is, of course, not covered by the warranty.

Paraffin/Diesel/Kerosene Heaters

Regular Changing of Consumable Parts
Please be aware that heaters require regular changing of consumable parts. Filters, electrodes and nozzles need regular cleaning or replacing, full details can be found in the operating instructions. If not serviced correctly, heaters will suffer poor combustion which could lead to unreliability, excessive fuel consumption and even fumes. In most cases it may only require a replacement consumable part to put the machine back into a first-class working condition again.

Fuel Condition
Fuel condition and type is vitally important. Diesel is only suitable down to 0 degrees Celsius, if the temperature drops below this you must use either kerosene or paraffin. Also dirty fuel will cause potentially expensive component failure.

A yearly summer service back with Sealey is a great idea, it will help prolong the life of the machine and also help ensure it is reliable when you really need it. Heaters returned for servicing must be drained of fuel prior to shipment.

Sealey Space Warmer Heaters, Model No's AB708, AB1258, AB7081

Sealey Space Heater, Troubleshooting for AB1008, AB1258, AB1758, AB2158


All our starter/chargers are equipped with overload and polarity protection fuses. The start facility should only be used for 8-10 seconds maximum. If the vehicle does not start in this time then the fuse in the starter/charger (depending on its amperage rating) will probably blow. We recommend that before returning starter/chargers to us for repair you examine the fuse and see if it requires replacing.

Plasma Cutters

As with MIG welders, these machines require a large number of consumable parts. Accidental damage to torches and hoses is not covered by warranty, and keeping stock of consumables for the torch is recommended.

Electric Power Tools

Carbon Brushes
Before returning power tools under warranty, please check the integrity of the carbon brushes. Frequently, our Service Department receives power tools back for repair when the only problem is the requirement to replace carbon brushes. These are readily available from us and we recommend that your Sealey stockist keep a selection in stock.

Industrial Vacuum Cleaners

As with all vacuum cleaners, filtration is vitally important. Before returning machines to your place of purchase, please check the pipes to make sure they are not obstructed and check to see whether the filter is obstructed or has been removed. Please be aware that dirt ingested into the motor through the users failure to change the filter, or due to them using the machine without a filter in place, will invalidate the guarantee and almost certainly burn out the motor.

Air Tools

Air tools can be serviced by most local service agents or by our own Service Department. Please check the returns procedure when using our own Service Department. Please stock and make available our in-line oiler and air tool oil. Please be aware that moisture in the air line is the biggest enemy of all air tools and our Service Department will decline warranty claims on air tools where the failure is down to internally rusted components.

Professional Spray Guns, Sand Blasting Guns etc.

A full range of air caps, nozzles and needles are available for all our spray guns. Please note that the nozzle on all sandblasting guns is a consumable part, and is not covered by warranty. Spray guns returned to us under complaint and only requiring cleaning will result in a charge for the service.

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Sealey Motorcycle Fork Seal Replacement

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American Pro, Superline Pro & Premier Toolboxes and Tool Chests

Please be aware that ‘bodywork’ on a tool chest, as with a car, is not covered by the warranty against accidental damage. Similarly damage to the wheels of mobile tool chests caused by rough ground etc. is not a matter for warranty. Replacement wheels can be ordered from our spare parts department.

Products Fitted with Gauges

Products in this classification include air line gauges and pressure regulators. Because of the sensitive nature of these devices, accidental damage or damage due to misuse is the cause of most failures. Air line gauges are used in notoriously hard environments and can be dropped and damaged easily. Warranty does not cover re-calibration. Pressure regulator gauges may be abused by purging full cylinder pressure through an open regulator. The sudden blast of air through the regulator damages the gauges and blows the diaphragm off its seat.

Safety Guards

Any machine returned to our Service Department without guards will have them fitted before leaving our workshop. This is a Health and Safety at Work Act requirement. Fitting of the guards will be chargeable.


Please examine equipment before returning it to your place of purchase, and provide any background information in writing that you think will assist our engineer. Our guarantee is 12 months (unless indicated otherwise) from the date of your purchase, providing proper maintenance of the equipment has been undertaken.