Doosan D50S-5 Operation & Maintenance Manual page 161

3. 3. Start and run the engine to stabilize the coolant Start and run the engine to stabilize the coolant
level in the filter neck. If low, add coolant until it level in the filter neck. If low, add coolant until it
reaches the top of the filter neck. Install the reaches the top of the filter neck. Install the
radiator cap. Observe coolant level in the radiator cap. Observe coolant level in the
expansion bottle. If necessary, add coolant to expansion bottle. If necessary, add coolant to
bring the coolant to the appropriate line on the bring the coolant to the appropriate line on the
expansion bottle. expansion bottle.
4. 4. Stop the engine. Stop the engine.
5. 5. Inspect the cooling system for leaks, hose Inspect the cooling system for leaks, hose
cracks or loose connections. cracks or loose connections.
Pressure air can cause personal injury. Pressure air can cause personal injury.
When using pressure air for cleaning, wear a When using pressure air for cleaning, wear a
protective face shield, protective clothing and protective face shield, protective clothing and
protective shoes. protective shoes.
Maximum air pressure must be less than 205 Maximum air pressure must be less than 205
kPa (30 psi) for cleaning purposes. kPa (30 psi) for cleaning purposes.
6. 6. Blow any dust and lint from the radiator fins. Blow any dust and lint from the radiator fins.
Inspect Foot Pedal Operation (LP Inspect Foot Pedal Operation (LP
Engine Only) Engine Only)
1. 1. Verify foot pedal travel is Verify foot pedal travel is smooth without sticking.
When When the the
connected or disconnected, should be worked connected or disconnected, should be worked
key OFF condition. key OFF condition.
If not, occurred malfunction, can cause the If not, occurred malfunction, can cause the
personal injury. personal injury.
WARNING WARNING
smooth without sticking.
WARNING WARNING
acceleration acceleration pedal pedal harness harness
Typical Example Typical Example
1. 1. Observe the air cleaner service indicator. Observe the air cleaner service indicator.
2. 2. Service the air cleaner when the RED band in Service the air cleaner when the RED band in
the service indicator, locks in the visible position. the service indicator, locks in the visible position.
See topic, "Air Intake System - Check, Clean" in See topic, "Air Intake System - Check, Clean" in
"Every 250 Service Hours or Monthly". "Every 250 Service Hours or Monthly".
NOTE: NOTE: Service the element more frequently, as Service the element more frequently, as
required, in severe dust or lint conditions. required, in severe dust or lint conditions.
Also, service it more frequently where the Also, service it more frequently where the
operator is required to wear a respirator. operator is required to wear a respirator.
3. 3. Close hood and seat assembly. Close hood and seat assembly.
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3. 3. Inspect the hydraulic system for leaks, worn Inspect the hydraulic system for leaks, worn
hoses or damaged lines. hoses or damaged lines.
4. 4. Look for transmission and driveaxle leaks on the Look for transmission and driveaxle leaks on the
lift truck and on the ground. lift truck and on the ground.
is is
Diesel Engine Diesel Engine Truck Truck
Maintenance Section Maintenance Section