Worn track shoe grousers can be re-conditioned to regain traction. Re-condotioning 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 vary 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. The MSR-2 has two stations that provide for quick 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 is turned over for the final fillet weld to be made.



Outstanding Features

The key to low cost grouser rebuilding is the high speed of model MSR-2, 10 track plates per hour, helping MSR-2 pay for itself in just six months.

A dealers 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.

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. 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.