PM 31024HIR Mack Knuckle Boom Crane

( Brand: Pm ), ( Manufacturer Part Number: 31024HIR ), ( Equipment Type: Truck-mounted Crane )

Review PM Mack Truck Knuckle Boom Crane

Detailed Product Description for the 1979 Mack PM Knuckle Boom Crane (Model 31024HIR)

Step back in time with the 1979 Mack PM Knuckle Boom Crane, a masterpiece of engineering that seamlessly combines power, versatility, and durability. This iconic crane, model number 31024HIR, boasts an impressive legacy in the heavy equipment industry, symbolizing the pinnacle of construction and material handling technology of its era.

The Mack PM Knuckle Boom Crane is a testament to Mack Trucks' unwavering commitment to quality and innovation. The crane features a powerful Mack PM engine, renowned for its reliability and fuel efficiency. The engine is coupled with a robust transmission system, ensuring smooth operation even in the most challenging terrains.

The crane's unique knuckle boom design offers exceptional reach and lifting capacity. The boom's multi-section structure allows for precise positioning of heavy loads, making it ideal for various construction, demolition, and salvage tasks. The crane's hydraulic system provides quick and controlled movements, enhancing productivity and safety on the job site.

The cab of the 31024HIR is spacious and ergonomically designed, offering unobstructed visibility and comfortable seating for the operator. The cab is equipped with modern instruments and controls, providing the operator with all the necessary information to effectively manage the crane's operations.

In terms of safety, the Mack PM Knuckle Boom Crane is second to none. It features a comprehensive safety system, including outrigger safety pins, overload warnings, and a variety of emergency stops. The crane is also equipped with a cab guard, offering additional protection for the operator.

In conclusion, the 1979 Mack PM Knuckle Boom Crane is a powerful and versatile piece of equipment that combines the best of the past with the latest in technology. Whether you're a seasoned professional or a novice in the construction industry, the 31024HIR offers an unparalleled experience in lifting and handling heavy loads. With its robust design, exceptional performance, and unmatched safety features, this crane is a valuable addition to any construction fleet.

Analysis of Buying a 1979 Mack PM Knuckle Boom Crane (Model 31024HIR)

1. **Historical Value**: This crane is a classic piece of machinery, offering a unique charm that modern models may lack. For collectors, restorers, or those who appreciate historical equipment, this could be an attractive feature.

2. **Durability**: Mack Trucks have a reputation for durability and reliability, which is likely to extend to their crane models. The knuckle boom design offers versatility in lifting and loading.

3. **Affordability**: Older models are often more affordable than their newer counterparts, making this crane an accessible option for those on a budget.

1. **Age and Wear**: Being a 1979 model, the crane may have considerable wear and tear, requiring extensive repairs or replacement parts, which can add up financially.

2. **Lack of Modern Features**: Newer crane models come with advanced safety features, increased efficiency, and better ergonomics. This crane may lack these features, leading to potential operational inefficiencies or safety concerns.

3. **Maintenance and Operating Costs**: Older machinery can be more expensive to maintain due to the scarcity of parts and potential compatibility issues. Operating costs may also be higher due to lower fuel efficiency compared to newer models.

Conclusion: The decision to buy the 1979 Mack PM Knuckle Boom Crane (Model 31024HIR) depends on your specific needs and priorities. If you prioritize historical value, a unique piece of machinery, and a lower upfront cost, this crane could be a good fit. However, if you require modern features, safety standards, and efficiency, it might be worth considering a newer model. Additionally, it's crucial to thoroughly inspect the crane for any hidden issues that could impact its long-term reliability and cost-effectiveness.

Recommendation: If you're primarily interested in the crane for work purposes, it might be more beneficial to invest in a newer model that offers improved safety, efficiency, and lower long-term maintenance costs. If you're a collector or restorer, this crane could be an exciting addition to your collection. In either case, it's advisable to seek professional advice and perform a thorough inspection before making a purchase.

Details:

The main boom and jib both have telescoping sections. This crane has had two owners it was recently used to build a custom home and previously for moving positioning concrete forms. It is NOT currently certified and being sold AS-IS. I have extensive documentation from the original owners manuals and crane build specification tests see photos.

The crane is PM model number 31024HIR with the J2 jib attachment. See photos for some examples from our project. This crane is excellent for lifting and positioning heavy loads safely with precision. The crane can reach over 60' with a capacity of 2,120 lbs at the tip.

The crane is in excellent condition given its age, and the Mack truck engine was rebuilt around 2011, has low hours since then, starts runs excellently all weather conditions. The crane is equipped with front and rear outriggers, a folding telescoping boom.

specifications heavequipm:

• brand: Pm
• mpn: 31024hir
• equipment type: Truck-mounted Crane

seller heavequiPm:

• city: Golden, Colorado
• # reviews: 21
• rating: 0.0%

offer heavequiPm:

• quantity: 1
• best offers: True
• sold: 0
• availability: In Stock
• started: November 12, 2025
• options: Seller-arranged-local-pickup

general heavequiPm:

• condition: Used
• Heavy EquiPment, Parts Attachments > Heavy EquiPment > Cranes

shipping heavequiPm:

returns heavequiPm:

• policy: No Returns

payments heavequiPm:

• wire transfer
• wallet: Apple-pay
• credit card: Diners-club

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