Spare parts for the Leman LOSRU250 band saw

This category is dedicated to spare parts for the Leman LOSRU250 wood band saw. This compact workshop machine uses 250 mm wheels, an induction motor, a tilting table and a blade-guiding system suitable for straight cuts or curved work depending on blade width and tooth configuration. Drive, guidance, adjustment and electrical components may require servicing or replacement during the life of the saw.

Availability changes with production and stock, so the products displayed should not be regarded as a permanent inventory. For reliable identification, use the exact model, exploded-diagram item number and rating-plate information.

Band saw wheels, tyres and blade tracking

The upper and lower wheels keep the blade moving continuously. Wheel condition, alignment and running surfaces directly affect tracking. Tyres or blade-contact surfaces must remain clean and regular so the blade can follow a stable path.

If the blade tends to run off a wheel, first check blade condition, tension, installation and tracking adjustment. Then inspect the wheels, shafts and bearings. Sawdust build-up, a distorted blade or poor adjustment can produce symptoms similar to mechanical wear.

Blade tension, tracking and guides

A band saw cuts correctly when the blade is adequately tensioned, centred on the wheels and supported by the guides without excessive pressure. Upper and lower guides limit sideways movement and rearward deflection. Wear, play or incorrect adjustment can affect cutting accuracy.

Blade wander does not automatically mean the guides are faulty. A blunt blade, unsuitable tooth pitch, insufficient tension or excessive feed pressure can cause the same problem. Check the complete blade path before ordering parts.

Drive belt and motor-to-wheel transmission

The Leman LOSRU250 drive belt transfers power from the motor to the driven wheel. With use it can stretch, crack, wear or lose grip, causing slipping, irregular drive, reduced blade speed or unusual noise.

Before replacing the belt, inspect pulley alignment and make sure the driven parts rotate freely. A new belt will not correct a seized bearing or misaligned pulley. Fit and tension the replacement correctly to avoid overloading motor or wheel bearings.

Motor, switch and electrical components

The LOSRU250 uses a single-phase induction motor. Failure to start, reduced performance or unexpected stopping can have several causes, including the supply, switch, safety circuit, capacitor depending on the fitted version, connections or excessive mechanical resistance.

With the machine disconnected, first make sure the blade and wheels can move freely and that the drive is not jammed. Internal electrical work should be carried out by a competent person. Never order an electrical component solely because it looks similar.

Tilting table, rip fence and mitre gauge

The work table tilts for bevel cuts and its locking mechanism must hold it firmly. Excessive play or poor clamping can reduce accuracy. The rip fence and mitre gauge also help position the workpiece for suitable operations.

Before replacing an adjustment part, inspect slots, bearing surfaces, screws, handles and clamps. Dirt or incorrect adjustment can restrict movement. Do not force a seized handle or screw before finding the cause.

The 1712 mm blade: check the consumable before diagnosing the machine

The LOSRU250 uses 1712 mm band saw blades. Different widths suit different work: narrow blades are useful for curves and scroll-type cutting, while wider blades provide greater stability for straighter ripping and general cutting. Width, thickness and tooth pitch must remain suitable for the machine and material.

The blade is a consumable and should be inspected before mechanical parts are blamed. A blunt, damaged, overheated or poorly set blade can wander, vibrate or break prematurely. After replacement, check tracking, tension and guides before cutting.

Why does a band saw blade break or come off the wheels?

Repeated breakage can result from excessive tension, poor guide adjustment, incorrect tracking, curves that are too tight for the blade width or forcing the feed. Wheel, bearing or tyre problems can also be involved, so the root cause should be identified rather than repeatedly fitting new blades.

If the blade repeatedly leaves its path, rotate the wheels manually with the saw unplugged after checking installation. Look for play or binding. Refit all guards before any powered test.

Identify the correct part from the exploded diagram

Visual appearance alone may not be sufficient, particularly where a machine has undergone production changes. Record the exploded-diagram item number, LOSRU250 model and rating-plate details. Keep the old part and photograph its original installation whenever possible.

If the part is not listed on our website, send us these details with clear photographs. Dimensions and markings on belts, bearings, switches or other components can help, but they do not replace confirmation of the machine version and manufacturer reference.

IMPORTANT: check compatibility before purchase

Probois Machinoutils – SEO Leman LOSRU250 Page 5

IMPORTANT: BEFORE PURCHASING, carefully check the list of compatible machines shown on each product page.

For some spare parts, the machine model alone is not sufficient to guarantee compatibility. Manufacturing changes can result in different components being fitted to machines with the same model name.

If in doubt, send us the exact model, month and year of manufacture and serial number before ordering.

Maintain your Leman LOSRU250 and extend its service life

Regularly remove sawdust from the guards and wheel area with the machine disconnected. Monitor blade condition, tension, tracking, guides and drive. Effective dust extraction reduces accumulation and helps keep the machine working correctly.

Probois Machinoutils offers an evolving range of spare parts for the Leman LOSRU250 band saw. Repairing a saw whose frame, table and main assemblies remain sound can extend its useful life economically. Accurate fault diagnosis and compatibility checking are the basis of a durable repair.