MAINTENANCE PROCEDURES

Checking/Adjusting Trowel Speed

Because the two hydraulic drive motors operate independent of each other, the trowel speed between them may vary.If the unit’s steering is difficult to control, or if one spider is spinning noticeably faster or slower than the other, the trowel speed may need to be checked. It is also recommended that the trowel speed be checked at least once a year.

Trowel speed adjustment is a two-step process. First, the left side should be checked and/or adjusted. Second, the right side should be adjusted to match the left.

Left Side Trowel Speed Adjustment

The left side trowel speed is adjusted by the set bolt located under the operator's platform (Item A, Figure 26) and accessed by opening the storage panel door. Backing the set screw out decreases the left side trowel speed; screwing it inward increases the speed.

A

Figure 26. Trowel Speed Control

Right Side Trowel Speed Adjustment

The right side trowel speed is adjusted by changing the length of the connecting rod on the pump actuation levers (Figure 27).

1

2

STX-SERIES — MAINTENANCE

1. Pump Actuation Levers

2. Connecting Rod

Figure 27. Pump Connecting Rod & Levers

This rod is basically a turnbuckle (Figure 28). Rotating it in one direction increases the length and corresponding trowel speed. Rotating it the opposite direction decreases the length and trowel speed.The right side trowel speed should be within 3 rpm of the left.

12

3

4

1. Hydraulic Pump (Top View)

2. Pump Actuation Levers

3.Adjustment Nuts

4. Turnbuckle Assembly

Figure 28. Turnbuckle & Adjustment Nuts

A good starting point in the adjustment process is to adjust the rod such that both trowels begin to rotate at the same time when the foot pedal is slowly depressed. This will, generally, get the speeds fairly close; close enough for use if instrumentation is unavailable (i.e.on the job site). From this point on, some form of instrumentation is required to verify that the trowel speeds are within tolerance. A strobe or magnetic pickup type speed indicator is recommended to verify the speeds.

The trowel speeds should be adjusted on a dry concrete floor with the blades pitched flat. Units with theYanmar turbocharged engine should be set at 130-135 RPM with the engine at full speed.

PAGE 34 — STX-SERIES • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #0 (03/15/06)

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Multiquip STX55Y6 Maintenance Procedures, Checking/Adjusting Trowel Speed, Left Side Trowel Speed Adjustment
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STX55Y6 specifications

The Multiquip STX55Y6 is a state-of-the-art, high-performance compact excavator designed to tackle a variety of jobs in landscaping, construction, and industrial applications. Built with the operator in mind, this machine combines powerful performance, advanced technology, and exceptional maneuverability in tight spaces.

One of the defining features of the STX55Y6 is its robust engine, which delivers powerful performance while ensuring efficiency and reliability. The excavator is equipped with a 55 horsepower, tier 4-compliant diesel engine that meets stringent emissions standards. This not only contributes to environmental sustainability but also provides ample power for demanding tasks.

The STX55Y6 boasts a compact design with a width of just 39 inches, allowing it to easily navigate through narrow passages and tight job sites. Despite its small footprint, it does not compromise on performance, offering a digging depth of up to 10 feet and a maximum reach of 16.2 feet. This makes it an ideal choice for digging trenches, grading, and other excavation tasks.

Another highlight of the STX55Y6 is its advanced hydraulic system, which provides excellent control and precision during operation. The machine features a powerful hydraulic pump that delivers superior lifting and digging capabilities. Furthermore, the auxiliary hydraulic system allows for the attachment of various implements, such as buckets, breakers, and augers, enhancing the versatility of the machine.

Operator comfort is enhanced through a spacious cab that features adjustable seating, advanced visibility, and intuitive controls. The large, multifunction display provides crucial information at a glance, allowing operators to monitor performance and quickly adapt to changing job site conditions.

Durability is a hallmark of the STX55Y6, with a robust frame and reinforced undercarriage designed to withstand the rigors of daily use. This ensures longevity and reduces maintenance costs, making it a wise investment for any construction or landscaping operation.

In conclusion, the Multiquip STX55Y6 offers an impressive blend of power, versatility, and operator comfort. Its reliable engine, advanced hydraulic system, and compact design make it an essential tool for tackling a variety of excavation tasks efficiently and effectively. With its focus on performance and user experience, this excavator is perfectly suited for today's demanding job sites.
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