DC Powered Cranes-Intermittent Duty as per S.A.E. J706 (section 6.2)12V DC Powered Cranes, From 800 Lb. Max Capacity to 6,000 Max Capacity. All DC powered cranes have limited duty cycles, by design DC Powered Motors are limited by the heat it generates, motors must be allowed to cool and the battery to replenish its charge. The truck should be running anytime the crane is used. Exceeding the Duty Cycle and or lack of an adequate power supply will result in premature motor failure.
NOTE: New OSHA REGULATIONS NOW IN EFFECT FOR 2,000 LB. and UNDER CAPACITY CRANES when used in construction.