STX-SERIES — MAINTENANCE

Pitch Pressure Check

Access the pitch block and pitch pressure test port at the right- rear of the trowel (Figure 44). Removal of the right-rear seat frame panel may be necessary. Pitch pressure must be measured with a pitch switch activated. With pitch switches unactivated, the pitch pressure will be the same as the charge/steering pressure. Proper pitch pressure is 2300 PSI (2250 - 2350 PSI).

Figure 44. Pitch Block

1.Install 3000 PSI range pressure gauge to pitch pressure test port on pitch block (Figure 45).

2.Activate left pitch switch.

3.Flatten blades (bottom out the pitch cylinders).

4.Continue to hold down pitch switch and record pressure.

Pitch Pressure Out of Specification

If the pitch pressure check is out of specification, check for the following:

1.Correct hydraulic fluid level.

2.Plugged hydraulic oil filter

3.Loose or leaking fittings.

4.Ruptured/damaged hydraulic lines.

5.Faulty hydraulic pump.

6.Pitch Pressure Relief Valve no longer at factory setting.

The Pitch Pressure Relief Valve is SET AT THE FACTORY, and normally should not require adjustment. If all other systems are found not to be defective and the pitch relief valve is suspect, the following steps can be used to adjust the valve.

CAUTION

NEVER allow the pitch pressure to exceed 2700 PSI or equipment damage may result.

WARNING

DO NOT attempt to adjust the Pitch Pressure Relief Valve while the engine is running.

1.

Remove right grill guard and right rear seat frame panel.

2.

With the engine OFF, remove the end cover on relief valve

 

(Item A, Figure 46).

3.

Adjust the relief valve (Item B, Figure 46) with allen wrench

 

and reinstall the end cover.

1000

00

3000

20

 

150 200

100250

50300

bar psi

WIKA

4000

5000

1

2

3

4.

Start the engine and check the pressure as described

 

earlier. (See Pitch Pressure Check)

5.

If pressure requires further adjustment, shut the engine

 

down and repeat steps 2 through 4 until pressure check

 

reads 2300 PSI.

1Pressure Guage - 3,000 PSI Range

2Access Pitch Block at Right-Rear of Trowel

3Pitch Pressure Test Port

Figure 45. Pitch Pressure Check

Figure 46. Pitch Pressure Relief Valve

PAGE 42 — STX-SERIES • RIDE-ON POWER TROWEL — OPERATION MANUAL — REV. #0 (03/15/06)

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Multiquip STX55Y6 operation manual Pitch Pressure Check, Pitch Pressure Out of Specification
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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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