Blue Bird Coachworks 450 LXi, Руководство пользователя

Страница: 470 / 684

450 LXi Owner Manual 5-3 Engine Maintenance
Rev. “C”
~ 5-3-11 ~
5-3.10 Battery Electrolyte Level - Check
When the engine is not run for long periods of time or when the engine is run for short periods, the batteries may not fully
recharge. Ensure a full charge in order to help prevent the battery from freezing. If batteries are properly charged, ammeter
reading should be very near zero.
Remove the fi ller caps. Maintain the electrolyte level to the “FULL” mark on the battery.
If the addition of water is necessary, use distilled water. If distilled water is not available use clean water that is low in
minerals. Do not use artifi cially softened water.
Check the condition of the electrolyte with the 1U-7298 Coolant/Battery Tester (°C) or the 1U-7297 Coolant/Battery
Tester (°F).
Keep the batteries clean.
Clean the battery case with one of the following cleaning solutions.
A mixture of 0.1 kg (0.2 lb) of baking soda and 1 L (1 qt) of clean water
A mixture of 0.1 L (0.11 qt) of ammonia and 1 L (1 qt) of clean water
Thoroughly rinse the battery case with clean water.
Use a fi ne grade of sandpaper to clean the terminals and the cable clamps. Clean the items until the surfaces are bright and
shiny. DO NOT remove material excessively. Excessive removal of material can cause the clamps to not fi t properly. Coat the
clamps and the terminals with 5N-5561 Silicone Lubricant, petroleum jelly or MPGM grease.
5-3.11 Battery or Battery Cable - Disconnect
1.
2.
3.
4.
•
•
Turn the start switch to the OFF position. Turn the ignition switch (if equipped) to the OFF position and remove the key
and all electrical loads.
Disconnect the negative battery terminal at the battery that goes to the start switch. Ensure that the cable cannot
contact the terminal. When four 12 volt batteries are involved, the negative side of two batteries must be disconnected.
Tape the leads in order to help prevent accidental starting.
Proceed with necessary system repairs. Reverse the steps in order to reconnect all of the cables.
1.
2.
3.
4.
5-3.12 Belt - Inspect
5-3.12.1 Inspection
Belt tension should be checked initially between the fi rst 20 to 40 hours of engine operation.
After the initial check, the belt tension should be checked at Every PM Level 1 or Three Months.
To maximize the engine performance, inspect the belts for wear and for cracking. Replace belts that are worn or damaged.
For applications that require multiple drive belts, replace the belts in matched sets. Replacing only one belt of a matched
set will cause the new belt to carry more load because the older belt is stretched. The additional load on the new belt could
cause the new belt to break.
If the belts are too loose, vibration causes unnecessary wear on the belts and pulleys. Loose belts may slip enough to cause
overheating.
WARNING!!
All lead-acid batteries contain sulfuric acid which can burn the skin and clothing. Always wear a face
shield and protective clothing when working on or near batteries.
WARNING!!
The battery cables or the batteries should not be removed with the battery cover in place. The battery
cover should be removed before any servicing is attempted.
Removing the battery cables or the batteries with the cover in place may cause a battery explosion resulting in
personal injury.