Front Travel Assembly ZP 01.020 for ZM-60/60A (without wheel)

Front Travel Assembly ZP 01.020 for ZM-60/60A (without wheel)

The front travel assembly ZP 01.020 (in the configuration without a wheel) is a basic mechanical component of the running gear of the ZM-60 and ZM-60A series grain loaders and their modifications. Since the massive support wheel typically has a significantly longer service life compared to the moving metal parts of the lifting mechanism, this supply option is the most rational solution for a complete overhaul of the running gear. Mounted directly to the machine frame, this sub-assembly fully assumes the functions of supporting the front section of the unit — its design ensures steering the machine's direction of movement via the handwheel, allows the system to contour the topography of the working surface (threshing floor), as well as performs the conversion of the grain loader from working to transport position and vice versa.

The design of this sub-assembly is based on a combination of outer and inner yokes, as well as a screw mechanism for height adjustment. Despite the absence of the wheel itself in the kit, the outer yoke has fully retained its functionality and is equipped with standard vertical guide slots for the wheel axle ZP 01.601. Due to these slots, the axle can move in a vertical plane relative to the yoke housing during position changes and unit movement. This mobility is particularly critical for the implementation of the surface contouring mechanism, where the assembly is capable of compensating for height variations of the working area (threshing floor), allowing the scraper feeders to always remain in the correct operating position and ensure high-quality grain pickup.

The system for adjusting the operating height (lifting) of the front leg relies on the operation of a vertical screw driven by the reciprocating motion of the handle. A special pawl on the handle engages with the ratchet wheel (star wheel) of the screw, creating a reliable ratchet drive, while changing the position of the pawl (flipping) allows the screw to be rotated in both directions, providing smooth lifting or lowering of the entire front section of the grain loader along with the feeders. For maneuvering the unit, a large steering sprocket is provided at the upper part of the assembly — it absorbs the rotational force via a chain drive from the sprocket shaft on which the steering handwheel is mounted.

Technical Specifications of the Front Travel Assembly ZP 01.020 ZM-60/60A (without wheel):

• Catalogue number: ZP 01.020 (configuration without support wheel)
• Lifting mechanism type: Screw type with ratchet drive
• Steering drive type: Chain type (for PR-19.05 chain)
• Assembled weight: approximately 18 kg (reduced due to the absence of the wheel)
• Quantity per unit: 1 pc.
• Country of manufacture: Ukraine

Since the ZM-60 series grain loaders have been manufactured for decades by several different enterprises, the front travel mechanism has received a number of factory modifications. The main technical discrepancies usually lie in the steering and lifting system components. For example, the large drive sprocket may have a different outer diameter (while the chain pitch is standardized), and the base beneath it is either a cast bearing housing or a special locking nut of increased size. The design of the outer yoke also varies — from a classic open platform to heavy-duty versions with a welded protective shroud. The inner yoke may also differ visually, but its mounting dimensions and guide slots usually maintain strict geometry. Special attention should be paid to the lower support point of the adjusting screw — in some versions it rests on a full-fledged thrust bearing via a system of bushings, while in others it simply rotates in a blind bushing with fixation by washers and a pin. Despite such a variety of engineering designs, the specialists at the Moroz Plant thoroughly understand all the differences and will flawlessly select the parts that will ideally fit your specific version of the unit.

As an alternative to a classic repair, we advise you to pay attention to our improved modification of the front travel assembly ZM-60U with dual wheels — this is exactly what all new machines of our manufacture are serially equipped with today. The use of dual wheels on a common axle fundamentally changes the physics of mass distribution of the heavy unit, guaranteeing a higher level of stability and operational safety. This base makes the grain loader significantly more responsive during manual maneuvering and adds comfort when moving it across the working area. Thanks to the optimized load on the leg, the steering mechanism rotates much easier, enabling the operator to quickly and accurately position the equipment without excessive physical effort. At the same time, the modernized assembly is fully interchangeable with the standard single-wheel configuration — it mounts standardly onto ZM-60 frames of previous production years without the need for any major structural modifications.

Spare Parts and Components of the Front Travel Assembly ZM-60/60A

The flawless technical condition of the front travel assembly plays a key role in ensuring the stability of the grain loader and the ease of its control. Natural wear of mechanical elements — from wear on the teeth of the steering sprocket and the threads of the screw to the widening of the guide slots of the yoke — critically complicates the maneuvering of the massive machine and the process of changing its working height. If you have decided not to order the complete assembly, but to carry out a targeted restoration of the existing leg, at the Moroz Plant you can purchase not only the ready-to-install sub-assembly (without the support wheel), but also the full range of individual parts:

• Outer yoke ZP 01.050
• Inner yoke ZP 01.040
• Screw ZP 01.070
• Special nut ZP 01.101
• Sprocket ZP 01.402
• Handle ZP 01.060
• Pawl ZP 01.401
• Axle ZP 01.601
• Rubber-tyred wheel ZPT 1.6.2
• Wheel hub ZPT 1007
• Cap 3S 4040
• Special bolt ZP 01.602
• Bushings (including roller bushings), plates, bars, washers, bolts, nuts, pins, cotter pins, grease nipples, and other small elements of this assembly

Given the diversity of factory designs and the constant demand for improving equipment characteristics, our assortment includes both basic spare parts and an expanded choice of heavy-duty or modernized elements. Depending on the specific design of your grain loader, you can select various configurations of housings, thrust bearings, as well as steering sprockets of non-standard sizes (including versions with built-in grease nipples for convenient maintenance). For machines with an updated braking system (the front travel locking mechanism), parts for a band brake are available, which are installed instead of the standard locking device on the frame. If there is a need to increase the machine's cross-country capability on uneven sections, instead of the standard wheel with a diameter of 400 mm, it is possible to use an enlarged 500-mm one (from OVS grain cleaners) — in this case, if necessary, we also adapt the dimensions and geometry of the inner yoke for it. This approach guarantees the preservation of sufficient working travel of the screw mechanism, so that the feeders lower unhindered to the very surface of the area. Also, with the aim of improving the overall ergonomics of the assembly, extended drive handles are available, which tangibly reduce the operator's effort when adjusting the height of the front section of the frame. Furthermore, we additionally offer modern metal-ceramic bushings, which demonstrate significantly higher wear resistance and are a reliable, durable alternative to standard roller ones.

Buy Front Travel Assembly without Wheel for ZM-60/60A (ZP 01.020) from the Moroz Plant

The Moroz Plant maintains a permanent warehouse stock of the entire range of parts, independently manufactures components, and performs comprehensive modernization of front travel assemblies for the ZM-60 and its modifications. Thanks to a deep understanding of the engineering features of equipment from different production years, our managers help to select the required parts unmistakably. We guarantee strict compliance with technical specifications, precise geometry of each product, and prompt shipment of orders to ensure reliable and long-term operation of your units. Contact our specialists — we will help you choose the optimal solution so that your equipment is high-quality restored, modernized, and functions stably during the most critical moments of the season.