First Impressions and Field Performance of the Grove RT60S Crane

[MikePhua]

The Grove RT60S and Its Development History
The Grove RT60S is a rough terrain hydraulic crane designed for lifting operations in construction, oilfield logistics, and industrial maintenance. Manufactured by Grove, a company founded in 1947 and later acquired by Manitowoc in 2002, the RT60S was part of Grove’s push to expand its mid-capacity rough terrain lineup. With a rated lifting capacity of 60 tons and a four-section telescoping boom reaching up to 105 feet, the RT60S was engineered to balance mobility, reach, and lifting power in off-road conditions.
Grove’s rough terrain cranes have long been favored for their compact chassis, four-wheel drive, and ability to self-deploy without external support. The RT60S was introduced during a period when demand for mobile lifting solutions was rising in remote infrastructure projects, particularly in North America and the Middle East.
Cab Layout and Operator Experience
The RT60S features a single cab mounted on the rotating superstructure, equipped with:

• Ergonomic seat with suspension adjustment
  
• Joystick or lever-based control system depending on year
  
• Load Moment Indicator (LMI) for real-time capacity feedback
  
• Boom angle and length readouts
  
• HVAC system for all-weather operation
  
• Visibility-enhancing glass panels and roof window
  

Operators often praise the cab’s simplicity and visibility, though older units may lack the refinement of newer models. One operator in Alberta noted that the RT60S cab felt “like a cockpit built for work, not comfort,” but appreciated the intuitive layout and responsive controls.
Boom and Load Handling Characteristics
The RT60S uses a four-section, full-power boom with synchronized extension cylinders. This allows:

• Smooth telescoping under load
  
• Precise placement of materials at height
  
• Reduced cycle time during repetitive lifts
  
• Compatibility with jib extensions for added reach
  

The boom’s hydraulic sequencing is designed to minimize bounce and sway, especially when lifting at extended radius. However, older units may show signs of cylinder wear, leading to uneven extension or drift under load.
To maintain boom performance:

• Inspect extension cylinders for leaks or scoring
  
• Grease boom wear pads regularly
  
• Calibrate LMI sensors annually
  
• Replace worn cable sheaves and limit switches
  

A crew in Texas retrofitted their RT60S with a digital boom angle sensor, improving lift planning accuracy and reducing operator guesswork.
Chassis and Mobility in Rough Terrain
The RT60S chassis includes:

• Four-wheel drive with planetary axles
  
• Hydraulic outriggers with independent control
  
• High-clearance frame for uneven terrain
  
• Central articulation for tight turning radius
  

Its ability to navigate muddy, rocky, or sloped surfaces makes it ideal for oilfield pads and remote job sites. However, tire wear and hydraulic leaks can compromise stability if not addressed.
Operators should:

• Check tire pressure and tread depth weekly
  
• Inspect outrigger pads and cylinders for damage
  
• Monitor articulation joint for play or binding
  
• Use cribbing under outriggers on soft ground
  

A mining contractor in Nevada reported improved stability after switching to high-density polymer outrigger pads, reducing sinkage and improving lift confidence.
Hydraulic System and Maintenance Notes
The RT60S relies on a central hydraulic system powering:

• Boom extension and retraction
  
• Swing motor and rotation brake
  
• Outrigger deployment
  
• Winch and hoist functions
  

Hydraulic fluid cleanliness is critical. Contaminants can damage valves, pumps, and motors. Recommended practices include:

• Fluid sampling every 500 hours
  
• Filter replacement at each fluid change
  
• Inspection of hoses for abrasion and cracking
  
• Monitoring pump noise and pressure fluctuations
  

One operator in Georgia installed a magnetic filter trap in the return line, catching fine metal particles and extending valve life.
Electrical System and Troubleshooting
The RT60S uses a 24V electrical system with:

• Relay-based control circuits
  
• LMI interface and sensors
  
• Lighting and warning indicators
  
• Starter and alternator system
  

Common issues include:

• Corroded connectors in humid environments
  
• Faulty relays causing intermittent boom functions
  
• Battery drain from aging wiring insulation
  
• LMI calibration drift due to sensor wear
  

Technicians recommend:

• Applying dielectric grease to all exposed terminals
  
• Replacing relays with sealed units
  
• Upgrading to LED lighting to reduce load
  
• Keeping a wiring diagram onboard for field diagnostics
  

A crew in Ohio resolved a persistent boom angle fault by replacing a frayed sensor wire near the pivot point—an issue missed during routine inspection.
Conclusion
The Grove RT60S is a capable and rugged crane built for real-world lifting in challenging environments. While not as digitally advanced as newer models, its mechanical reliability and straightforward design make it a favorite among seasoned operators. With proper maintenance, thoughtful upgrades, and attention to hydraulic and electrical systems, the RT60S continues to deliver dependable performance where it matters most—on the jobsite. In the world of rough terrain cranes, it’s not just about lifting—it’s about lasting.