Versalift VO-350 / 355-MHI Insulated
Articulated Overcenter Aerial Bucket Trucks |
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INSULATED UPPER BOOM
The 10.5 in. x 12.5 in. (267 mm x 318 mm) rectangular upper
boom is constructed of high strength filament-wound epoxy resin
fiberglass. The fiberglass has a gel coat and a high gloss durable
urethane finish for added weather protection and water beading.
The fiberglass is inserted into a steel weldment at the elbow end
of the boom then adhesive is pumped in under pressure to fill all
voids. After the adhesive cures, 8 bolts are installed to assure
maximum strength. The fiberglass boom is certified for 46 KV and
below in accordance with ANSI A92.2 Category C dielectric rating
requirements. The upper boom articulates a total of 2100 relative
to the lower boom. A side by side boom design allows low travel
height and improved platform access. The upper boom articulation
is accomplished by a double acting hydraulic cylinder and 4-bar
mechanical linkage. The system does not use any cables and
the booms can be stowed in any sequence. A double acting
holding valve is provided. An upper boom storage cradle mounted
on the turret assures solid boom support in the stowed position.
CONTINUOUS ROTATION
Rotation is continuous and unrestricted in either direction. The
rotation system consists of a hydraulically driven worm and spur
gear acting on a shear-ball rotation bearing. The critical bolts
holding the lift to the rotation bearing and the rotation bearing to
the pedestal are Grade 8. These critical bolts are torque seal
marked to provide a quick means of detecting any loosening. An
eccentric ring gearbox mounting allows for precise backlash
adjustments sequence. An upper-boom storage cradle assures
solid boom support when the boom is stowed.
LOWER BOOM
The lower boom is designed and constructed from high strength,
12 in. (300 mm) square, steel tube. Boom articulation is 1000
from horizontal to 100 past vertical. Articulation is achieved by using
a double-acting hydraulic cylinder equipped with two integral
holding valves. In the event of a hydraulic failure, the integral
holding valves prevent the booms from dropping by locking the
booms in position. In addition, the cylinder rod eye is both threaded
and welded.
PLATFORM LEVELING
Platform leveling is achieved automatically through a completely
enclosed parallelogram system. The major components of this
system include 3/4 in. (19 mm) diameter fiberglass leveling rods
and No. 100 high strength roller chain. There are no cables used
in this system. The fiberglass leveling rods maintain the
insulation gaps in all boom positions and are 100% tested at
twice the rated load. The tension is adjusted by means of a
threaded rod in the upper and lower boom and platform leveling
is adjusted by another threaded rod at the turret.
CHASSIS INSULATING SYSTEM (Lower Boom Insert)
Each end of a high strength filament-wound epoxy resin fiberglass
is inserted into the steel boom sections. The fiberglass insert
maintains a 12 in. insulation gap between the two steel sections.
LUBRICATION
Non-lube bearings are used at all pivot points. Only the rotation
bearing and leveling chains require lubrication.
GENERAL SPECIFICATIONS ((Based on 40 in. (1.02 m) Frame Height))
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VO-350-MHI |
VO-355-MHI |
| Horizontal Reach, Overcenter |
42 ft 3 in (12.9m) |
47 ft 3 in (14.4m) |
| Horizontal Reach, Non-Overcenter |
31 ft 9 in (9.7m) |
34 ft 8 in (10.6m) |
Maximum Platform Capacity
(each platform) |
350 lbs (160kg) |
350 lbs (160kg) |
| Maximum Jib Capacity |
2000 lbs (905kg) |
2000 lbs (905kg) |
| Lower Boom Lift Eye Capacity |
3500 lbs (1587kg) |
3500 lbs (1587kg) |
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| With P-700 Pedestal |
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| Height to Bottom of Platform |
50 ft 4 in (15.34m) |
55 ft 4 in (16.87m) |
| Working Height |
55 ft 4 in (16.87m) |
60 ft 4 in (18.4m) |
| Stowed Travel Height |
10 ft 11 in (3.32m) |
10 ft 11 in (3.32m) |
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| Hydraulic System |
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| Operating Pressure |
3000 PSI (210 kg/cm2) |
3000 PSI (210 kg/cm2) |
| Flow Rate |
10 GPM (38 lpm) |
10 GPM (38 lpm) |
| Filtration |
10 micron return
100 mesh section |
10 micron return
100 mesh section |
| System Type |
Closed center |
Closed center |
| Power Source |
PTO Pump |
PTO Pump |
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*NOTE:
- Specifications may vary without prior notification
- Required GVWR can vary significantly with chassis, lift mountings location, service body, accessories, and desired payload.
OPTIONS:
- 400 lbs. Platform Capacity
- Two-Speed Manual Throttle-Control
- Hydraulic Extending Jib
- Emergency Power
- Category B Dielectric Testing & Certification
- Outrigger/Boom Interlock System
- Tool Port Flow Control
- Dual Platform Rotation Support
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Controls designed with the operator in mind.
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Platform tilt allows for easy cleaning. |
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