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HM484Q Engine. Manual - part 6

Use of Engine Service Platform

Check of engine oil pressure

1. Park the vehicle on a flat ground;

2. Warm up the engine to the normal temperature and then shut down;

3. Wait for 5mins.

4. Pull out the dipstick and observe the oil level and state, check whether it remains

between the scales F and L.

5. Fill up or replace oil as needed.

6. Confirm the assembly of dipstick O-ring as shown in the following Fig.

7. Reinsert the dipstick.

Replacement of engine oil pressure

Warning

l As the oil temperature of warm-up engine is very hot, be cautious of

scalding.

l As waste oil is carcinogenic, wash your skin with soap and clean water

after the work.

1. Remove the oil filler cap and drain plug.

2. Put the oil into a suitable vessel.

3. Replace by a new gasket and fit the oil drain plug.

4. Tightening torque: 30～41N

·m{3.1～4.2kgf·m, 22～30ft·lbf}

5. Fill into the engine the specified type and dosage of oil.

6. Refit the oil filler cap.

7. Start the engine and check for any leakage.

8. Check the engine oil level and add as needed (See

——Check of Engine Oil)

Attention

l In some cases, the real volume of oil added according to the scale may be

different from the specified.

O-ring

Use of Engine Service Platform

Oil volume L{US qt, lmp qt}

Items

Volume

Oil replacement

3.1{3.2, 2.7}

Oil and filter replacement

3.3{3.5, 2.9}

Engine oil grading: more than API/SL.

Oil viscosity option standard

Oil viscosity grade

Higher than

–25℃{13℉}

SAE 10W

–30

℃～37

℃{

–22

℉～98

℉}

SAE 5W

–30

Replacement of oil filer

1. Use a special tool to remove the oil filter.

2. Use a piece of clean fabric to clean up the surface of new oil filter.

3. Smear clean oil around the O-ring of new oil filer.

4. Use a special tool to fit the oil filter.

Tightening torque: 14～16N

·m{142.3～162.6kgf·cm, 127.5～145.7in·lbf}

5. Start the engine and check for any leakage.

Check whether the oil level needs to add (See

——Engine Oil and Check of Engine

Oil).

Others

Other checks and maintenances, e.g. generator and starter etc.,, can be also carried out
on the CBU, please refer to this manual and the CBU-relevant Service Manual.

Oil filter sleeve

Smear clean oil around the O-ring

Use of Engine Service Platform

Upper Service Platform of Engine

1. Fit the support sliding arm of special tools at the exhaust side of cylinder block and

tighten the fastening bolt (as shown in Fig.).

2. Install special tools as per the position shown in Fig.

3. Adjust the fastening bolt and assure that a part of thread in about 20mm (0.79in) is

exposed.

4. Adjust the bolt and nut and enable the support plate and support sliding arm of

special tool to locate on the same level.

5. Tighten the bolt and nut of special tool.

Attention

l The self-lock braking system of engine service platform may become suddenly

ineffective under unbalanced state, e.g. sudden and rapid action during the
upper/lower the engine gets on and off the platform may cause the unbalance of
engine service platform and result in hazard. Thus, during the operation, ensure
the equitability of engine and whole service platform. When operating the
turnover of engine, firmly grip the rotating handle of service platform.

Support sliding arm

Bolt

Fastening nut

Support plate

Fastening bolt

Bolt

Support sliding arm

Bolt

Fastening nut

Support plate

Special tool

Use of Engine Service Platform

6. Install the engine on the service platform.

7. Place the engine into a designated container.

8. Replace by new drain plug spacer and tighten the drain plug.

Tightening torque: 30～41N

·m{3.1～4.2kgf·m, 22～30ft·lbf}

Lower Service Platform of Engine

Unload the engine from the service platform in the reversing order with that of the upper
service platform of engine.

Engine service platform

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