Versalift VO-40-MHI Insulated Articulated Overcenter
Aerial
Bucket Trucks
INSULATED UPPER BOOM
The 8 in. x 10 in. (200 mm x 250 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 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 2400 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. An overcenter tie-down is included.
LOWER BOOM
The lower boom is designed and constructed from high strength, 12 in.
(300 mm) square, steel tube. Boom articulation is 1100, from horizontal to
200 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.
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.
JIB AND WINCH
A material handling jib and winch with an 1100 lbs. (500 kg) capacity. The
jib pole is 4 in. square and hydraulically articulates 1200. The pole manually
extends from 1.5 ft. to 5 ft. (0.5 m to 1.5 m) with 5 pinning positions. A
self-locking worm gearbox hydraulically powers the winch, so a brake is
not required. The winch includes 55ft (17 m) of 3/8 in (10mm) diameter
winch line with a braided hoop and clevis hook. A control valve for the
winch is provided at both the upper and lower controls.
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, mounted on the
lower boom assures solid boom support when the boom is stowed.
PLATFORM LEVELING AND ROTATION
Platform leveling is achieved automatically through a completely enclosed
parallelogram system. The major components of this system include 1 in.
(25 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. A hydraulic cylinder rotates the platform
through 900 travel. Rotation control is located at the platform.
GENERAL SPECIFICATIONS (Based on 40 in. (1.02 m) Frame Height)
| |
VO-40-MHI |
 |
| Horizontal Reach, Overcenter |
31 ft (9.4m) |
| Horizontal Reach, Non-Overcenter |
29 ft 11 in (9.1m) |
| Maximum Platform Capacity |
400 lbs (183kg) |
| Maximum Jib Capacity |
1100 lbs (500kg) |
| Lower Boom Lift Eye Capacity |
1500 lbs (680kg) |
| |
|
| With Standard Pedestal |
| Height to Bottom of Platform |
39 ft 10 in (12.1m) |
|
| Working Height |
44 ft 10 in (13.60m) |
|
| Stowed Travel Height |
10 ft 3 in (3.1m) |
|
| |
|
|
| Hydraulic System |
|
|
| Operating Pressure |
2500 PSI (176 kg/cm2) |
|
| Flow Rate |
6 GPM (23 lpm) |
|
| Filtration |
10 micron return
100 mesh section |
|
| System Type |
Open center |
|
| Power Source |
PTO Pump |
|
*NOTE:
- Specifications may vary without prior notification
- Required GVWR can vary significantly with chassis, lift mountings location, service body, accessories, and desired payload.
|