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))

	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)
With P-700 Pedestal
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)
Hydraulic System
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

*NOTE:

1. Specifications may vary without prior notification
2. Required GVWR can vary significantly with chassis, lift mountings location, service body, accessories, and desired payload.