TM 10-3930-659-34 1-15. ELECTRICAL SYSTEM (Con’t). c. Monitoring System. The monitoring system includes a variety of electrical senders, and associated gages and Indicators located In the cab. This allows the operator to be aware of the status of the forklift truck during operation. For a description of the function of each monitor within the system, see TM 10-3930-659-10. d. Windshield Wipers and Washers. Separate wipers, washers, and controls are provided for the front windshield and rear cab window. 1-16. ON-BOARD CRANE. The 900 lb (409 kg) capacity crane is used to remove and install the conveyorized forks, cab upper section, and counterweight. It is hand-operated and can be raised or lowered to three different operating positions with quick-release pins. 1-17. FORKLIFT WINTERIZATION PACKAGE. a. The forklift truck is equipped with a winterization package that protects the forklift truck systems down to -650F (-54°C). b. The winterization package consists of an engine coolant heater, engine oil pan heater, battery heaters, and 110- volt junction box. Heaters are operated by an external 110-volt AC power source and are equipped with a thermostat for overheat protection. An extension cord has been provided to connect the forklift truck to the power source. c. The engine coolant heater is located in the engine cylinder head just behind the hydraulic reservoir. d. The engine oil pan heater is located in the engine oil pan. e.  Each  battery  has  a  blanket-type  heater  wrapped  around  the  battery  case  and  a  tray  heater  or  warmer underneath it. The battery warmers are mounted on wooden insulators. 1-10