Specially designed to control traffic for large vehicular driveways such as those found in truck terminals, airports, military installations. The wish-bone style arm is made of 1″ x 6″ (2.54cm x 15.3cm) clear, white pine extending 12 ft. (3.66m) from the gate body. Further extension is made by a single board attached to the double arm by a bullnose galvanized bracket to allow total arm extension up to 18 ft. (5.49m). Cross bracing is achieved by galvanized steel brackets and zinc-plated fasteners. Arm assembly is counterbalanced with steel weights. All wood portions of the arm are painted with two coats of exterior black paint. Yellow warning stripes are applied diagonally to both sides of the gate arm for better visibility. An optional “light package” is available at extra cost.
Three warning lights with red lenses on both sides are installed on the barrier arm 4 ft. (1.2m) apart with suitable gaskets for weatherproof installation. Operating voltage 120V. A.C.
Doorlec’s model TCBOD barrier has a synchronized double linkage drive assembly and is engineered to withstand the abuse of continuous operation.
Thermostatically controlled 500 watts heater ensures normal temperature in the cabinet during extreme weather conditions, preventing freezing of oil in the speed reducer and eliminating humidity on electrical components.
Will accept, when specified, any optional equipment for fully automatic operation. (See catalogue # E113).
Constructed of 10 ga. C.R. steel, welded together with all seams ground smooth. Two lockable access-doors are located on side opposite to traffic for easy maintenance and service. Top cover of housing is also removable to facilitate adjustment to limit-switches and drive mechanism. Access doors are gasketed and designed to meet EEMAC 4 classification. Totally waterproof assembly. Barrier housing is primed with rust-proof primer and spray-painted in gold-tan baked enamel.
Momentary-contact type for up, down, stop. Operator may be stopped in any position and barrier moved up or down from that position. Down button can be wired for constant pressure when specified. Control circuit: 24V. A.C. for user’s protection, class II.
Made by V-belts and pulleys for primary reduction. Worm-gear reducer, single-stage 60:1 ratio for secondary reduction to barrier drive-shaft. Barrier angular speed: 32o/second. Opens or closes in less than 3 seconds.
Rotary-type cams, mounted on output drive shaft, activate the micro switches to cut power of motor in both up or down directions on their preset travel. Operating force on limit switches: 4 oz. (113.4g) maximum. Contact separation: .020″ (.05cm). terminations: 0.25″ (6.25cm) quick connect.
1/2 H.P. (373W) 120V. or 240V. single-phase with manual reset over-current or under-voltage protection.