OPERATION

7.2 Constant Velocity (CV) Driveline

For mowers equipped with a Constant Velocity (CV) driveline, the maximum turning angle between the tractor and mower must be determined to ensure the joint angle does not over-extend which can cause CV joint damage. Constant Velocity joints enable the driveline to operate smoothly with no vibrations and clattering at angles up to 70°. Angles greater than 80° can result in mechanical damage to the CV joint and mower driveline.

The Constant Velocity joint must be lubricated every 8 hours of operation as specified in the Maintenance Section. Failure to properly lubricate the joint will result in accelerated wear and joint component failure.

CV Driveline Maximum Angle Check Procedure

1.With the mower attached to the tractor and the driveline disconnected from the tractor PTO stub make a hard left turn until there is approximately a 1" clearance between the left rear tractor tire and mower frame or tongue.

2.Stop and completely shut down the tractor. Place the tractor in Park and apply the Parking Brake before dismounting.

3.Check the CV joint at this maximum turning radius by holding the driveline yoke above the PTO shaft and then angle the CV joint to its maximum angle. A minimum difference of 10 degrees between the center line of the yoke and the PTO shaft must be maintained to ensure the joint will not be over angled. If the joint cannot be angled at least 10°, there is a potential problem of over-angling the joint while making sharp turns.

4.Solutions: To ensure the joint is not damaged, check the following:

-Check the drawbar length to ensure that it is at the proper length for the RPM speed of the mower. -Move the tractor rear tires wider apart to limit the tractor turning radius.

-Position the mower at multiple angles and perform the above procedure. Determine the sharpest turning radius that maintains a safe operating angle and note this position to the operator.

10 DEG.

80 DEG.

80 DEG.

CONSTANT VELOCITY JOINT-MAXIMUM ANGLE CHECK

DANGER! Do not turn so sharp or lift mower so high to produce a severe "knocking" of the Driveline which will cause accelerated wear and breakage of drive train components and could result in possible injury from the separated Driveline sections. (SRM-4)

SR14/SR20 10/03

Operation Section 4-17

© 2004 Alamo Group Inc.

OPERATION

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Alamo SR14, SR20 manual Constant Velocity CV Driveline, CV Driveline Maximum Angle Check Procedure
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SR14, SR20 specifications

The Alamo SR14 and SR20 models represent the cutting edge of modern military vehicle technology, designed to cater to both light tactical and heavy-duty utility roles. These vehicles are engineered for versatility, durability, and performance, making them essential assets for military operations across various terrains.

The Alamo SR14 is designed as a lightweight, multipurpose tactical vehicle. One of its main features is its rugged construction, which combines advanced materials with a streamlined design. This not only enhances its mobility and speed but also ensures a high degree of protection against small arms fire and shrapnel. The SR14 is equipped with a powerful turbocharged diesel engine, providing reliable performance and a high torque output, facilitating off-road capabilities and adaptability in challenging environments.

Key technologies in the SR14 include an advanced all-wheel-drive system, which enables effective traction on various surfaces. Additionally, the vehicle incorporates state-of-the-art suspension systems, allowing for superior maneuverability and stability even in rough terrains. The spacious cabin accommodates a crew of up to four personnel and can be configured for various roles, such as command and control, reconnaissance, or logistics support.

On the other hand, the Alamo SR20 is a slightly larger variant that emphasizes heavy-duty operations while retaining many of the SR14's capabilities. With a higher payload capacity and expanded space for equipment, the SR20 is ideal for transporting supplies, ammunition, and medical evacuation. It also comes with enhanced armor options, allowing for an increased level of protection against more significant threats.

Notable features of the SR20 include a digital communication system that integrates seamlessly with existing military networks, ensuring real-time information sharing and situational awareness. The vehicle can be fitted with various weapon systems, transforming it into an effective mobile platform for combat support.

Both SR14 and SR20 exhibit fuel efficiency, reducing logistical burdens during extended missions. High-visibility lighting systems and rugged bumpers enhance operational safety, while a modular design allows for easy maintenance and upgrades. The Alamo SR series epitomizes modern military vehicle design, meeting the diverse needs of today's armed forces with efficiency and effectiveness.
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