MT86 Operation and Maintenance Manual
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1) Check the hand brake and the foot brake.
2) Check working conditions of the illumination system, instrument signal system and various indicators (oil
pressure, air reservoir pressure, air filter maintenance indicator and charge indicator).
3) Check working conditions of the starter and the generator as well as the battery electrolyte level.
4) Check the air pressure and state of tires.
5) Check liquid levels of the engine oil, coolant and traversing mechanism hydraulic oil.
6) Discharge water from the air reservoir.
5.3.2 Cleaning and inspection of transmission system parts
1) Cleaning
The parts surface of each assembly of transmission system might be stuck with dirty oil and sludge, so cleaning
parts is indispensable. The common methods are cleanings with steam, gas, acid solution or alkaline solution,
neutral agent and trichloroethylene as well as magnetic cleaning. In this process, damage to some parts might
occur. Therefore, careful inspection must be done in the process of cleaning.
a. Metal parts
● Cleaning with gas. Unlike other methods, gas can hardly infiltrate or dissolve sludge. Unless the surface of
parts is precisely refined, wire brush or other tools can be used to clean sludge for twice.
● Alkalization treatment. If parts are made of alloys, they cannot adopt this treatment. The alkalization
treatment used to clean steel castings and iron castings has better effect.
b. Rubber parts
No mineral oil can be used. Use alcohol or one piece of clean cloth to wipe impurities.
c. Rust protection
After cleaning all the waste oil and grease on the part surface, smear one layer of clean oil on the surface to
prevent rust.
2) Inspection
Before cleaning parts, use prepared measuring instrument or tools to inspect. Determine whether the parts are
suitable for reuse according to specified maintenance standards. Damaged parts require maintenance or
replacement. If one piece of matched part is severely damaged, and its assembly clearance exceeds the
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