OM2209 Warnings and Cautions - Section 22 Page 22-3 A plate is mounted on the left hand side of the trans- mission oil pan to provide instructions for proper transmission oil level check. 1. Engine Stopped: Oil level must be visible in upper part of sight gauge (STOP) between "H" and "L" to be sure there is sufficient oil to safely operate transmis- sion when engine is stopped, or if transmission oil is cold (engine has been stopped for 8 hours or more). Check oil level again, as described below, when transmission oil reaches operating temperature. 2. Engine Running: Oil level must be visible in lower part of sight gauge (turtle) between "H" and "L". Check transmission oil level with:
• truck parked on level surface, • engine running at low idle, • transmission in NEUTRAL, "N", and • transmission oil at normal operating temperature: Add clean oil as required through transmission oil filler tube at left rear of transmission. Warning plates are mounted on the truck frame in front of and to the rear of both front tires to alert all persons to stay clear when the truck is being steered. A warning plate is mounted on top of the radiator surge tank cover near the radiator cap.The engine cooling system is pressurized. Always turn the key switch off and allow the engine to cool before remov- ing radiator cap.
Unless the pressure is first released, removing the radiator cap after the engine has been running for a time will result in the hot coolant being expelled from the radiator. Serious scalding and burning can result. Service personnel should use caution when ser- vicing radiator. The system is pressurized because of thermal expansion of coolant. DO NOT remove the radiator cap while the engine is hot. Severe burns may result.