Multiquip AR13HAR manual Hydraulic Oil System, Changing Hydraulic Oil and Filters

Models: AR13HA AR13HAR

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maintenance

Hydraulic Oil System

The hydraulic system consists of a two-pump stack directly coupled to the engine. A hydraulic valve block (manifold) is provided for quick and easy testing and troubleshooting.

Hydraulic oil is filtered by a screen filter located in the tank filler neck, a 40 micron suction filter located in the tank, and a 10 micron return filter, with cold oil bypass valve located in the return circuit.

It is recommended that ISO 46 type hydraulic oil or equivalent be used when adding or replacing the hydraulic oil is required.

DO NOT USE MULTI-VISCOSITY OIL. Cleanliness is a very important part of proper hydraulic system operation. Hydraulic oil is not only used to transfer power; it also lubricates and cools the system components. Keeping the hydraulic system clean can help reduce costly repairs.

The hydraulic oil level sight glass is located on the right rear of the front drum, below the engine compartment.This level should be checked daily. Oil must be below the top and above the bottom of the sight glass. DO NOT OVERFILL! Care should be taken to clean the filler cap before adding oil to the system. If hydraulic oil has to be added, the machine should be inspected for leaks.

The suction filter (Figure 26) is located inside the hydraulic tank. This filter is attached to the fitting connected to the hydraulic pump suction hose.

The return filter (Figure 26) is located at the front of the engine compartment. Replace both filters according to the Table 5.

CAUTION

DO NOT open hydraulic lines or loosen hydraulic fittings while engine is running! Hydraulic fluid under pressure can penetrate the skin, blind, cause burns or create other potentially dangerous hazards follow all safety instructions as described throughout this manual.

Changing Hydraulic Oil and Filters

1.Park the roller on a clean flat work area and set the parking brake.

2.Remove the hydraulic oil drain plug (Figure 26) and drain the hydraulic oil. Dispose of the used oil in an

environmentally friendly manner. Replace the drain plug and tighten.

HYDRAULIC OIL

HYDRAULIC OIL

CAP/FILLER PORT

SUCTION FILTER

HYDRAULIC

OIL DRAIN

PLUG

HYDRAULIC OIL

RETURN FILTER

Figure 26. Hydraulic Filter Locations

3.Remove the return filter and install a new filter. Dispose of the used filter in an environmentally friendly manner.

4.Disconnect the suction hose and remove the fitting from the tank. Replace the suction filter. Dispose of the used filter in an environmentally friendly manner. Replace the fitting and reconnect the suction hose.

Freewheel Engagement Valve

NOTICE

The freewheel engagement valve (towing) is only for emergency use. DO NOT move roller over 2 MPH or long distances as hydraulic system component failure could result..

This hydraulic system has a freewheel engagement valve allowing hydraulic oil to be bypassed. Open (turn allen wrench counter-clockwise) this valve (Figure 27) to engage the freewheel capability of the roller. When the valve is fully opened, ports A and B are allowed to connect, bypassing the oil to and from the drum drive motors.

ALLEN

WRENCH

OPEN

CLOSED

TOW

FREEWHEEL

ENGAGEMENT

VALVE

Figure 27. Freewheel Engagement Valve

page 24 — AR13HA/AR13HAR ROLLER (s/n 110301 & up) • operation AND PARTS manual — rev. #0 (06/22/11)

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Multiquip AR13HAR manual Hydraulic Oil System, Changing Hydraulic Oil and Filters, Freewheel Engagement Valve

AR13HA, AR13HAR specifications

The Multiquip AR13HAR and AR13HA are advanced, rugged, and efficient walk-behind rollers designed for various construction and road maintenance applications. These compact rollers are specifically engineered to handle asphalt and soil compaction tasks, making them ideal for both professional contractors and do-it-yourself enthusiasts seeking high-quality performance in compact spaces.

One of the standout features of the Multiquip AR13HAR and AR13HA is their excellent maneuverability. With their tight turning radius, these rollers can easily navigate confined areas, allowing for effective compaction even in challenging sites. This makes them particularly useful for patching, trench work, and other localized applications.

The AR13HAR model is equipped with a reliable water-cooled engine that delivers robust power, ensuring consistent performance throughout the compaction process. The hydraulic system offers smooth operation, allowing operators to adjust the roller's speed and direction with ease. The self-propelled functionality further enhances user experience, catering to various operator preferences.

In terms of compaction capability, both models are fitted with high-frequency vibrating plates that facilitate superior compaction results. The AR13HAR and AR13HA can achieve impressive compaction depths, making them suitable for a wide range of material types. Users can expect consistent and uniform compaction across the working surface, which is essential for building durable pavements and bases.

Another important aspect is their durability. Multiquip has crafted the AR13HAR and AR13HA with robust materials, ensuring that they can withstand the rigors of construction sites. The rollers feature reinforced frames and sturdy drums designed to endure harsh conditions, contributing to a longer lifespan with less maintenance required.

Safety is also a priority in the design of these rollers. They come equipped with essential features like an emergency stop switch and operator protection measures to ensure a secure working environment. Additionally, the ergonomic controls are intuitively positioned, promoting operator comfort and reducing fatigue during extended use.

Overall, the Multiquip AR13HAR and AR13HA represent a perfect fusion of power, agility, and safety in compact roller technology. Their impressive features and robust design make them a reliable choice for professionals looking to enhance efficiency and productivity in their compaction projects. Whether it's a small repair task or a larger construction job, the Multiquip AR13 series can deliver results that meet and exceed expectations.