Maintenance - Section 4 OM4033.1 Page 4-2 Lubrication & Service COOLANT LEVEL CHECK Reserve Engine Oil System (Optional) Inspect the coolant sight gauge. If coolant cannot be seen in the sight gauge, it is necessary to add cool- ant to the system before truck operation. Refer to the procedure below for the proper filling procedure. The reserve oil tank for the engine is designed to add more oil capacity to the engine to reduce the frequent servicing of the engine oil. The engine oil level must still be checked every shift using the dipstick. If engine oil level is not correct, check for proper opera- tion of reserve oil system. Never add oil to engine unless it has been drained.
RADIATOR FILLING PROCEDURE If the engine oil has been drained from the oil pan, the new oil must be added to the engine oil pan before starting. DO NOT use the oil in the reserve tank to fill an empty engine with oil. After an oil change, both engine and reserve tank must be full of oil before starting the engine. Cooling System is pressurized due to thermal expansion of coolant. DO NOT remove radiator cap while engine and coolant are hot. Severe burns may result. Reserve Oil Tank Filling Procedure (Remote fill) 1. With engine and coolant at ambient tempera- ture, remove radiator cap. 1. Connect the pressure supply hose from the new oil supply to the quick coupler on the truck.
Open valve on supply hose to apply pressure. Note: If coolant is added using the Wiggins quick fill system, the radiator cap MUST be removed prior to adding coolant. 2. Pull out on switch (2) to turn the system "ON". 2. Fill radiator with proper coolant mixture (as specified by the engine manufacturer) until coolant is visible in the sight gauge. 3. Push start switch (3). The "Valve Open" light (5) should illuminate and the filling process will begin. 3. Install radiator cap. 4. When tank is full, the "Valve Open" light will turn "OFF" and the FULL light (4) will illuminate. 4. Run engine for 5 minutes, check coolant level. 5. Close the oil supply valve in the fill hose. 5.
If coolant is not visible in the sight gauge, repeat steps 1 through 4. Any excess coolant will be discharged through the vent hose after the engine reaches normal operating temperature. 6. Press and hold start switch (3) for several sec- onds. 7. Disconnect the new oil supply hose. Engine coolant must always be visible in the sight gauge before truck operation. 8. Push switch (2) in to turn system power "OFF”. FIGURE 4-1. 1. Remote Control Box 2. System Switch 3. Start Switch 4. “Full” Light 5. “Valve Open” Light COOLING SYSTEM ANTI-FREEZE RECOMMENDATIONS (Ethylene Glycol Permanent Type Anti-Freeze) Percentage of Anti-Freeze Protection To:
10 + 23° F 5° C 20 + 16° F - 9° C 25 + 11° F - 11° C 30 + 4° F - 16° C 35 - 3° F - 19° C 40 - 12° F - 24° C 45 - 23° F - 30° C 50 - 34° F - 36° C 55 - 48° F - 44° C 60 - 62° F - 52° C