Maruma Technica

Workshop Equipment and Tools

Undercarriage Rebuilding

Hydraulic Component Reconditioning

Mobile Workshops

Off Road Tire / Wheel Equipment


Worn track shoe grousers can be re-conditioned to regain traction. Re-conditioning usually consists of welding a pre-formed grouser bar onto the track shoe plate. The re-conditioning should be accomplished before the grousers are so worn that the track shoe plate would bend due to loss of structural strength of severely worn grousers. When welding the pre-formed grouser bars, it is important that the old worn grouser be trimmed very flat and evenly. This will assure a good weld securely joining the two pieces without warping or setting up stresses. Such stresses could cause problems in the field later and must be avoided. Consequently, we recommend that replacement grouser bars be re-welded in a special unit designed for this purpose. MARUMA TRACK SHOE REBUILDING MACHINE (MSR-2) is a complete machine for replacing worn grousers on track shoe plate. he MSR-2 has two-stations that provides for Tquick and easy handling of the track shoe plate and replacement bars. While the track chain is disassembled for pin and bushing work, the shoes are checked and those requiring replacement grouser bars are shifted to the MSR-2. Each track shoe in turn is clamped into position on the MSR-2. At this point, a gas torch automatically trims the old grouser off. Then, the track shoe plate is moved to the second position where the replacement grouser bar is clamped securely to the flat and even surface of the track shoe plate. A fillet weld is made automatically in a down-hand position. Then, without removing the clamping device, the track shoe (track shoe plate and grouser bar) is turned over for the final fillet weld to be made.


Low Rebuilding Costs
The key to low cost grouser rebuilding is the high speed of Model MSR-2 ----10 track plates per hour.
High Rebuilding Profits
Model MSR-2 will normally pay for itself in just 6 months.
Tractor Customers Save
A dealer’s customer, the tractor user, can save over a new track shoe with equal life. This saving is a very worthwhile contribution to the contractor in lower maintenance costs, decreasing the overall running costs.
Ideal operation
Flame trimming is done with high-speed precision workmanship and spring-loaded automatic-racing device guides the cutting torch along the curved contour of worn and bent track shoe plates. High pressure 20 ton clamp provides accurate positioning of the new grouser bar and straightens the bent track shoe plate. The carriage has a variable speed drive, with a disengaging lever to permit free movement instantly. Fillet welding of both sides of the track shoe plate and grouser bar is done without removing the track shoe.


Electric power unit46.6 kVA, three phase.
Welding condition650A/44V, 430 mm/min.
Effective weld track shoe lengthMax. 760 mm.
Hydraulic power unit0.77 kW, three phase, 700 kg/cm2 (max).
Clamping force20 tons
Dimensions (L x W x H),power unit not included2700 x 1300 x 2080 mm.
Weight approx790 kg (machine) 260 kg (Electric power unit).
60 kg (Hydraulic power unit).


For flame trimming the worn grouser.
For pressure clamping, straightening, and welding one side of the replacement grouser bar to the track shoe plate and for finish welding on the other side of the grouser bar. The track shoe is turned over by a pivoting mechanism, saving time, space and manpower.

�E�Specifications and illustrations are subject to change without notice.
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