Operating Instructions - Section 30 03/13 OM3054 Page 30-4 24. Ensure the ground level engine shut off switch is ON. Cold Weather Heating System Some trucks operating in cold weather climates may be fitted with an optional cold weather heating sys- tem. The system includes heaters in the transmis- sion, hydraulic tank, engine oil pan, battery box, cooling system, and fuel system. Trucks fitted with - 40°C (-40°F) equipment (or colder) may also contain heaters in the rear axle. 25. Climb the ladder to the main deck. Always use the hand rails and ladder when mounting or dis- mounting the truck. Clean the ladder and hand rails of any foreign material, such as ice, snow, oil or mud.
The power receptacle (2, Figure 30-2) is mounted inside the RH upright near the bottom of the radiator. Face the truck when using the ladders. Never mount or dismount the truck while the truck is in motion. 26. Check the coolant in the radiator using the cool- ant level sight gauge. If the engine is hot, allow the coolant to cool before removing the radiator fill cap. Serious burns may be acquired from contact with hot coolant. Depress the pressure relief before removing the cap. FIGURE 30-2. HEATING SYSTEM POWER RECEPTACLE 1. Radiator 2. Power Receptacle 27. Inspect the battery box cover for damage. Ensure the cover is secured, tightly. 28. Check the air cleaner indicators.
If the indicator is in the red area, the air filter must be cleaned or replaced before operating the truck. The system operates on 220V and is controlled by various thermostats in the system. The thermostats operate the heaters within a certain temperature range. 29. Clean the cab windows and mirrors. Clean the cab floor, as necessary. Ensure the steering wheel, controls and pedals are free of foreign substances such as oil. 30. Stow personal gear in the cab so that it does not interfere with operation of the truck. Clean dirt or trash buildup, specifically in the operator's cab. DO NOT store tools or supplies in the cab or on the deck.
Do not operate the engine while the heater sys- tem is operating. Lack of coolant circulation in the heaters will burn out the heating elements. 31. Adjust the seat and steering wheel so that it is comfortable for use. 32. Read and understand the information detailed in Operator Controls and Instrument Panel. Become familiar with all control locations and functions before operating the truck.