Lub of Bolero SLX

BOLERO SLx

INTRODUCTIONWHEN ANY TWO PARTS IN A ENGINE WORKS AS SYSTEM IT PRODUCE WEAR & TEAR AND HEAT DUE TO FRICTION . AT THE SAME TIME VERY HIGH TEMPERATURE IS PRODUCED, DUE TO COMBUSTION OF FUEL IN ENGINE . THESE HEAT ENERGY ARE CAPABLE ENOUGH TO MELT THE ENGINE PARTS, SO TO PREVENT WEAR AND TEAR A SYSTEM IS DEVELOPED IN AUTOMOBILE CALLED AS LUBRICATION SYSTEM.

AIM

• AIM OF THIS PRESENTATION IS TO ACQUAINT THE CLASS OF

THE LUBRICATION SYSTEM OF BOLERIO SLx 4WD

NECCESITY

FOR EASY MOTION OF ENGINE TO REDUCE HEAT OF ENGINE TO REDUCE FRICTION TO INCREASE THE LIFE OF ENGINE SEALING AGENT OF PISTON CUSHION AGENT FUCTION OF COOLING AGENT

FUNCTIONS OF LUBRICANTS

LUBRICATE MOVING PART TO MINIMISE WEAR AND TEAR.

ABSORB HEAT FROM ENGINE PARTS THERE BY ACTING AS A COOLING AGENT.

ABSORB SHOCKS BETWEEN BEARINGS AND OTHER ENGINE PARTS THERE BY REDUCING ENGINE NOISE AND EXTENDING ENGINE LIFE.

FORMS A GOOD SEAL BETWEEN PISTON RINGS AND CYLINDER WALLS.

ACT AS A CLEANING AGENT.

LOCATION

ESTABLISHED FROM OIL SUMP-CRANK CASE AND DEFFERENT PARTS OF ENGINE.

PARTS OF LUB SYSTEM

OIL SUMP STRAINER OIL PUMP (IN BOLERO SLX ROTOR TYPE) OIL FILTER (Bypass open at

1.5 kg/cm sq)BY PASS VALVE MAIN OIL GALLERY TURBO CHARGER

VACCUM UNIT CRANK SHAFT MAIN JOURNAL CRANK PIN CAM SHAFT CAM BUSH ROCKER SHAFT

ROCKER ARM PUSH ROD- TAPET VALVE – VALVE SPRING – VALVE

GUIDE

FUNCTIONING OF LUBRICATION SYSTEM

When we crank the engine, crankshaft and camshaft rotates. From the scew gear of camshaft, drive gear of oil pump is also rotated which rotates the driven gear of oil pump.This rotation creats a suction at the inlet port, due to which the oil pump draws oil from the oil sump through rigid internal suction tube And oil starts flowing through different parts of engine as under

From Oil pump to Oil filter(prv opens at 2bar) From Oil filter to Main oil Gallery(By-

pass opens at 1.5 kg/cm square) From MOG oil runs through the length

of the block to the main journal From Main journal to Crank pins Main journal crank pin

01 TO 01

02 02

03 SELF LUBRICATING

04 03

05 04

From Crank pins to respective connecting rods Big end & small end bearings and piston pins.

From no. 1,3 & 5 main journals to no.1,2 & 3 cam shaft bushes.

From MOG to Rocker arm shaft, where after lubricating the whole valve mechanism the oil fall back to the oil sump.

From the MOG to Turbo-charger and vacuum unit (Through benjo bolt and external pipe line)

After lubricating the whole system while falling of lubricant in the sump it is splashed by the weights of crankshaft which lubricates cylinder walls, pistons, gudgeon pins, Big end and small end bearings.

FLOW CHARTFLOW CHART

Oil sump Strainer Oil FilterOil pump

MOGMain JrnlCrank pin

Turbo charger

Vacuum unit

Cam bushes

Big end

Con-rod Small end Pis-pin

Rocker shaft

Valve Mech.OIL SUMP

MAIN OIL GALLERY

ROCKER SHAFT

Oil Filter

Oil Sump

Vacuum unit

MJ

cp

C B

Valve Mech.

FLOW OF LUBRICATION FLOW OF LUBRICATION

DEFECTS IN LUBRICATION SYSTEM

LOW OIL PRESSUREHIGH OIL PRESSUREEXCESS OIL CONSUMPTION

DEFECTS

LOW OIL PRESSURE 1. THIN OIL.

2. CRANK CASE DILUTION.

3. OVER HEATING OF ENGINE.

4. WORN OUT OIL PUMP GEARS.

5. PRV ON PUMP STUCK IN OPEN POSITION.

6. OIL LEAKS

HIGH OIL PRESSURE

(INDICATED BY OIL PRESSURE GAUGE)

1. THICK OIL.

2. PRV ON PUMP STUCK IN CLOSED POSITION.

3. COLD CLIMATE.

HIGH CONSUMPTION OF OIL

(FREQUENT TOPPING UP IS REQUIRED)

1. OIL LEAKS.

2. WORN OUT PISTON RINGS/CYLINDER WALLS/VALVE GUIDES CYLINDER HEAD GASKET.

CARE AND MAINTENENCE1. CHANGING OF OIL AS PER RECOMMENDATION

2. USE OF PRESCRIBED GRADE OF OIL

3. ENSURE NO LIKEASE IN SYSTEM

4. FILTER MUST BE CHANGED WITH OIL CHANGING

5. OIL INDICATOR SHOULD BE ALWAYS IN FUNCTIONING CONDITION

6. CARRY OUT MAINTENANCE AS PER TASK NO.7.

LUBRICATION CHART

1Engine oil (7.5lt) SAE15W40

15000 Km

2Gear oil NG 530 (2lt) SAE80W90

20000 Km

3 Transfer case oil(1.6lt) 20000 Km

4Differential gear oil (F 1.2lt) (R1.65lt) SAE90

20000 Km

5Steering oil (0.8lt) Texamatic ATF

20000 Km

CONCLUSIONAS OF NOW WE HAVE LEARNT ABOUT LUBRICATION SYSTEM. DURING THIS PERIOD WE LEARNT NECCESITY, FUNCTION OF LUBRICANTS, ADVANTAGE OF LUBRICATION, TYPE OF LUBRICATION SYSTEM, PARTS OF LUBRICATION SYSTEM, FLOW OF LUBRICANTS IN THE VARIOUS PARTS OF ENGINE, DEFECTS IN LUBRICATION SYSTEM AND CARE AND MAINTENANCE OF THIS SYSTEM.

SO IF WE PAY PROPER ATTENTION OR NEED TO THE REQUIREMENT OF ENGINE AT DIFFERENT TERRAIN AND CONDITION AND FOLLOW THE INSTRUCTION FOR USING LUBRICATION OIL AND TIME PROCEEDURE OF CHANGING LUBRICANTS WE CAN DEFINATELYN SAVE OR PROLONG THE LIFE OF ENGINE AND PARTS INVOLVED.