Altec AA55-MH Aerial Bucket Truck
Medium-duty reach at 55 feet. Two-man bucket. Built for full utility crews.
55-ft articulating aerial bucket truck. 600 lb two-person bucket, 30 ft horizontal reach, PTO-driven. Utility and municipal maintenance class. Class 5/6 truck mount.
- 55 ft vertical reach (working height to 61 ft)
- 30 ft maximum horizontal reach
- 600 lb bucket capacity — two-person rated
- Articulating + telescoping two-section boom
- 360° continuous basket rotation
- Lower boom mechanical outreach for obstacle clearance
- PTO-powered hydraulics — no generator required
- Hydraulic 4-point outriggers with ground load indicator
- Emergency boom descent — manual override at base and bucket
✓ In Stock — Ships in 5-10 business days
| Warranty | 2 years hydraulic, 5 years structural |
| Boom Type | Articulating + telescoping (2-section) |
| Outriggers | Hydraulic, 4-point with load indicator |
| Boom Weight | 5,800 lbs (boom assembly) |
| Power Source | Truck PTO (hydraulic) |
| Vertical Reach | 55 ft |
| Working Height | 61 ft |
| Basket Rotation | 360° continuous |
| Bucket Capacity | 600 lbs (2-person) |
| Horizontal Reach | 30 ft |
| Mount Compatibility | Class 5 or 6 truck chassis |
Multi-angle views of the Altec AA55-MH Aerial Bucket Truck. Click any image to zoom.
Watch the Altec AA55-MH Aerial Bucket Truck in action — full installation and operation demo.
Aerial bucket trucks use a truck-mounted hydraulic boom and articulating system to position a work bucket at height. The PTO-driven system draws power from the truck engine — boom operation requires the truck engine to be running.
PTO Engagement
Before operating the boom, engage the Power Take-Off (PTO) via the in-cab switch or lever. The PTO connects the truck's transmission output to the hydraulic pump. The truck must be in neutral (auto) or PTO gear (manual) before PTO engagement.
Outrigger Setup
Deploy all four outriggers before raising the boom. Place outrigger pads under each foot on soft or uneven ground. Confirm all four indicator lights show "set" (or physically verify leveling) before raising the boom above horizontal.
Boom Controls
Both platform (bucket) controls and base controls operate the boom. Platform controls replicate all boom functions with the addition of a platform rotation control. The base controls include an emergency override for all boom functions in the event of power loss in the bucket.
Emergency Lowering
A manual hydraulic override at the base of the boom lowers the platform in the event of engine failure or hydraulic system failure. The operator in the bucket should wear a full-body harness with a lanyard connected to the bucket's D-ring anchor at all times.
⚙️ Outrigger Interlock
The boom cannot be raised above horizontal unless all four outriggers show confirmed ground contact. An electronic sensor in each outrigger pad signals the control system. A boom raised without full outrigger deployment is the primary cause of tip-overs in aerial truck incidents.
🛡️ Insulation Testing (Class E)
Insulated bucket trucks require annual dielectric testing per ANSI/SIA A92.2. The fiberglass upper boom and bucket are tested to their full rated voltage (40 kV for Class E). A test port on the unit allows in-field testing without removing components.
🔒 Platform Fall Arrest Anchor
A certified D-ring fall arrest anchor is welded into the bucket structure. All operators in the bucket must wear a full-body harness with the lanyard connected to this anchor at all times — OSHA 1910.67 requirement for aerial devices.
🚨 Emergency Lower / Override
A manual hydraulic override at the base of the boom lowers the platform to ground level independently of all electronic controls and truck power. Location and operation are marked clearly on the unit. Test this system at every pre-shift inspection.
How does this compare?
The 50–60-foot height class is the primary operating range for electric cooperatives and investor-owned utilities doing distribution work — the majority of overhead distribution circuits in the US run on poles with typical attachment heights of 35–55 feet. The AA55-MH at 55 feet covers this entire range with a comfortable safety margin. The two-person bucket is non-negotiable for utility work: energized line work under OSHA 1910.269 requires a second worker within visual and verbal communication range, and a two-person bucket keeps the crew together on the structure.
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