Single-phase switch with emergency stop point DKLD 15A-250V or CK21
Handle with grip n° A-51+53 for Chisel mortiser
Horizontal presser marks 79-83 and 87-94 for square chisel mortiser
Stand for Hollow Chisel Mortiser Bernardo HM25 Top or Bernardo HM25
This mortising device allow to work with your drill column as an hollow chisel mortiser
Gas spring chisel mortiser Leman MOR375
Stand for Hollow Chisel Mortiser Bernardo HM25 Top or Bernardo HM25
Complete workpiece hold-down clamp for Leman MOR375 mortising machine
Find our selection of spare parts for Leman hollow chisel mortisers, including parts for the Leman MOR375 and MOR750, as well as various components suitable for mortisers of a similar design.
A hollow chisel mortiser is specifically designed to produce accurate square or rectangular mortises in timber. It uses a cutting assembly consisting of a square hollow chisel with an internal auger bit. The auger removes most of the waste while the hollow chisel cuts the sides and square corners of the mortise.
With regular use, components in the head movement mechanism, workpiece clamping system, table adjustment system and electrical system can wear or become damaged.
This category includes a range of replacement parts for Leman mortisers to help maintain, repair and extend the working life of your machine.
The Leman MOR375 is a bench-mounted hollow chisel mortiser designed for producing mortises in a wide range of timber workpieces.
Its mechanism contains several components that may need to be replaced due to wear, damage or intensive use.
Replacement parts may include components for the head raising and lowering mechanism, workpiece clamping system, adjustment mechanisms and electrical equipment.
The MOR375 also uses a gas strut to assist movement of the mortising head.
A worn or faulty gas strut can make the head difficult to raise or prevent it from returning correctly after a mortising operation.
The Leman MOR750 is a larger hollow chisel mortiser designed to provide increased stability and capacity for more demanding mortising work.
The machine incorporates several mechanisms for positioning the workpiece, clamping the timber and controlling movement of the mortising head.
As with any workshop machine, mechanical components can gradually wear or become damaged after prolonged use.
Our range includes various parts for repairing and maintaining these mechanisms.
The gas strut is an important component of the mortising head movement system.
It assists the vertical movement of the head and particularly helps it return to its raised position after the mortising operation.
A worn gas strut may cause:
difficulty raising the head;
slow return of the mortising head;
the head failing to remain correctly positioned;
unusual resistance during movement;
gradual loss of assistance.
We offer gas struts intended for machines including the Leman MOR375 and MOR750.
Before ordering, always check the exact machine model and compare the specifications of the original gas strut.
Securely holding the timber is particularly important when using a hollow chisel mortiser.
The pressure required to push the chisel into the timber can cause the workpiece to move if it is not properly secured.
Horizontal and vertical clamps are used to hold the workpiece firmly against the table and fence during mortising.
A damaged clamp or worn clamping mechanism should be replaced to maintain effective and reliable workpiece holding.
This category includes different clamps and clamping components for hollow chisel mortisers.
Various mortiser adjustment mechanisms may use a rack and pinion system.
These components convert the rotation of a handwheel or handle into controlled mechanical movement.
With repeated use, the teeth of the pinion gear or rack can become worn or damaged.
This may result in:
excessive play in the mechanism;
irregular movement;
tight spots;
difficult adjustment;
complete jamming of the mechanism.
If one of these symptoms appears, it is advisable to inspect both the rack and pinion gear to assess the condition of the complete mechanism.
Handwheels, cranks and handles are regularly operated when setting up and using a mortiser.
Depending on the machine, they may be used to adjust a mechanism, move the table or operate the mortising head.
A broken handle or damaged handwheel can make the machine difficult to use even when the main mechanical assembly remains in good working condition.
Replacing these relatively simple components can often restore the usability of an older mortiser.
The operating handle allows the user to lower the hollow chisel progressively into the timber.
It must transfer the operator's force correctly to the head mechanism while allowing controlled movement during the cut.
A broken or bent handle, or a mechanism with excessive play, can make mortising less accurate and more difficult.
Damaged components in the head operating mechanism should therefore be replaced before continuing to use the machine.
A faulty switch can prevent a mortiser from starting or cause unreliable operation.
Depending on the machine version, some models may use a switch incorporating an emergency stop system.
Before replacing a switch, always check:
supply voltage;
current rating;
number of electrical connections;
wiring configuration;
housing dimensions;
compatibility with the machine.
Never select a replacement switch solely because it looks similar to the original.
Any electrical work must be carried out with the machine disconnected from the power supply and, where necessary, by a suitably qualified person.
A hollow chisel mortiser operates using a cutting assembly consisting of a square hollow chisel and an internal auger bit.
The auger bit removes most of the waste material while the hollow chisel cuts the sides and corners of the mortise.
For clean and efficient mortising, the cutting tools must be sharp and suitable for the machine.
A blunt hollow chisel considerably increases the force required to penetrate the timber and can place additional strain on the head mechanism.
The condition of both the hollow chisel and auger bit should therefore be checked regularly.
Some mortisers can also be installed on a dedicated machine stand to provide a comfortable working height and good stability.
Various accessories may also be used to adapt or complete a hollow chisel mortiser.
Before ordering a stand or accessory, always check the dimensions of your machine and its mounting arrangement.
Regular maintenance helps preserve the accuracy and working life of your Leman mortiser.
It is advisable to:
keep movement mechanisms clean;
regularly remove wood chips and dust;
check all fixings and fasteners;
inspect the gas strut;
check the workpiece clamps;
inspect racks and pinion gears for wear;
keep guides and sliding surfaces clean;
regularly inspect the hollow chisel and auger bit;
investigate any unusual play, resistance or noise.
Wood chips and dust can gradually accumulate around moving mechanisms. Regular cleaning helps maintain smooth and accurate movement.
Before ordering a spare part, identify the exact model of your Leman mortiser.
The Leman MOR375 and MOR750 are different machines, and their components are not necessarily interchangeable.
When an exploded parts diagram is available, locate the position number corresponding to the required component.
For the Leman MOR375, the base spare part reference is 170300, followed by the corresponding number from the exploded parts diagram.
Also compare:
the shape of the component;
its dimensions;
its mounting system;
its position number;
its part number when available.
These checks are particularly important for mechanical and electrical components.
IMPORTANT: BEFORE PURCHASING, ALWAYS CHECK THE LIST OF COMPATIBLE MACHINES.
Some parts in this category may be suitable for several hollow chisel mortisers of similar design, while others are intended exclusively for a specific model.
If there is any doubt, the month and year of manufacture and the serial number of your machine may be required to confirm compatibility.
Do not rely solely on the appearance of the component.
Compare its part number, dimensions, mounting arrangement and position number with the original part fitted to your machine.
Gas struts, horizontal and vertical clamps, racks, pinion gears, handwheels, operating handles, switches and other mechanical components: find the spare parts for Leman MOR375 and MOR750 hollow chisel mortisers you need to maintain and repair your machine.
Replacing a worn or damaged component can often restore a mortiser to proper working condition without replacing the complete machine.
Accurate identification of the machine model, original component and its position on the exploded parts diagram remains the best way to select the correct spare part and extend the working life of your Leman mortiser.
