If you use excavator Komatsu PC100, one important thing that cannot be missed is regularly change engine oil.
Because, lots of machine damage excavator not because of the age of the tool, but use of oil that does not meet engine specifications or is replaced too late.
The question “What engine oil is most suitable for Komatsu PC100?”
This article will answer in full:
- the type of oil used on the PC100
- recommended engine oil for PC100
- capacity oli PC100
- indicator of when to change the oil
Let's just discuss it.
Types of Oil Used by Komatsu PC100 Excavators
Before discussing engine oil in more depth, it's important to understand that excavator PC100 Use several different types of oil according to the system.
1. Engine System
Here's a quick look at the specifications excavator Komatsu PC100:
- Diesel engine 4 cylinder
- Maximum engine speed 2200 rpm
- Output ± 70–80 HP (depending on the series)
The machine serves as the main source of energy excavator that moves:
- pump hydraulic
- excavator work system
Components like piston and crankshaft moves at high speed and produces great friction.
Was Mesin on excavator this works for:
- form a protective layer (film lubrication)
- absorb heat
- clean up combustion residue
2. Hydraulic System
Function hydraulic system this is converting the energy of a machine into a movement like:
- lift boom
- move arm
- operate bucket
- twist track
Component hydraulic system among others:
- hydraulic pump (main pump)
- control valve
- cylinder (boom, arm, bucket)
- hydraulic tank
Hydraulic system this also requires hydraulic oil to lubricate components pump internals and valve and prevent corrosion and wear during use of the unit excavator.
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- Causes of Excavator Low Power and Solutions
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3. Final Drive System (Movers Track)
Function of final drive on excavator this is converting hydraulic energy into mechanical power for rotation track (chain wheel) excavator.
One of the important components of the system final drive this is planetary gear set. Planetary gear set it consists of:
- Sun gear
- Planetary gear
- Ring gear
- Carrier
Planetary gear on excavator This functions to reduce the high rotational speed of the hydraulic motor into power large enough to move track excavator.
This component requires gear oil to reduce heat due to interactions between gear and prevent wear.
4. Swing Drive System (Play System)
Swing drive system serves to rotate the top excavator 360° so excavator can still work without needing to move the position of the unit as a whole.
Usage gear oil on swing drive system This functions to maintain the stability of the system rotation and reduce direct friction between components / parts.
Read Also:
- Get to know PC excavators 100, These are specifications and uses
- Comparison of Komatsu PC100 vs PC200 Dimensions: Which is More Suitable for Your Project?
Recommended Komatsu PC100 Engine Oil
Machine order excavator PC100 works optimally, engine oil must comply:
- SAE 15W-40
- Minimum API CI-4 (better CK-4 / CJ-4)
Why SAE 15W-40 is Most Recommended?
SAE 15W-40 is the oil viscosity standard set by Society of Automotive Engineers.
The numbers show oil viscosity level at two different temperature conditions.
- 15W (W = Winter / cold temperature)
The oil will be quite thin when the engine is first started. So that, oil circulates quickly and engine components are immediately lubricated.
- 40 (working temperature / hot)
The oil is quite thick when the engine is running until it is hot. With thick conditions, The oil layer on the components remains stable so as to prevent excessive friction between components.
The conclusion, SAE 15W-40 is the recommended oil standard that is relevant to the tropical climate in Indonesia. So that, heavy equipment diesel engines such as excavator PC100 is suitable for using this type of engine oil.
Why Should API CI-4 and Above?
API CI-4 is the engine oil quality standard set by American Petroleum Institute.
This oil code has a meaning:
- C = Compression Ignition/Diesel
- I-4 = type / generation of performance standards (higher than the previous CH-4)
Oils with API CI-4 standards are designed for:
- diesel engine heavy-duty / heavy equipment
- high machine workload
- control soot (soot) machine
- high operating temperature
API CI-4 This is an oil quality standard that is strong enough to protect the engine excavator PC100 in heavy working condition.
Read Also:
- Compulsory! Heavy Equipment Exhaust Emission Standards in Indonesia and the Risks of Violating them
- Heavy Equipment Wastes Fuel? This 7 Causes and Solutions
Engine Oil Recommendations
1. Shell Rimula R4 / R5 / R6
These three variants of Shell Rimula engine oil, start R4, R5 and R6, has SAE 10W-40.
Shell Rimula Oil Price Estimates (Make sure to buy from a trusted shop):
- Shell Rimula R4 (1 liter): Rp56.000 – Rp86.000
- Shell RImula R5 (1 liter): Rp81-000 – Rp114.000
- Shell Rimula R6 (1 liter): Rp150.000 – Rp165.000
2. Pertamina Meditran SX / S40
Pertamina Meditran SX has a 15W-40 standard. Meanwhile, the Meditran S40 has the API CF/CF-2 standard which is suitable for non-turbocharged diesel engines
Pertamina Oil Price Estimates:
- Mediterranean SX (1 liter): Rp50.000 – IDR 70,000
- Meditran S40 (1 liter): Rp37,000 – Rp59.000
3. Castrol CRB Multi / Vecton
Castrol has standard variants of 15W-40, namely CRB Multi and Vecton.
Castrol Oil Price Estimates:
- CRB Multi 15W-40 (1 liter): Rp56.900 – Rp64.300
- Vecton 15w-40 (1 liter): Rp72.500 – Rp99,000
Vital Records: All prices above are estimated prices, not an official benchmark. So the price can go up or down at any time.
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- Types of Heavy Equipment Rental System
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Why Choosing Engine Oil is Very Important?
1. Diesel Engines Produce High Soot
If the oil is not able to hold the particles, can form sludge which increases the likelihood of the piston jamming.
2. High Load Requires Film Strength
If the oil is not strong enough or is not standard, metal-to-metal contact can occur so that components wear quickly.
3. High Temperature Triggers Oxidation
Oil that is not heat resistant will deteriorate more quickly / loss of lubrication ability.
4. Dusty Environments Add to Contamination
The oil must be able to capture particles and keep the engine clean
Important insights:
Lubrication failure is one of the main causes of heavy equipment engine damage.
Oil Capacity Excavator Komatsu PC100
| System | Capacity |
| It was Mes | ± 13 – 16 liter |
| Oli Hydraulic | ± 80 – 110 liter |
| Final Drive | ± 5 – 6 liter |
| Swing Drive | ± 3 – 4 liter |
⚠️ vital Records:
Capacity may vary depending on the unit series (PC100-5, PC100-6, PC100-8).
Always refer to the official Komatsu manual for the most accurate data.
PC100 Excavator Indicator Must Change Oil
1. Oil Color Changes
2. Decreased Engine Performance
3. Rougher engine sound
4. Temperature Rises
5. Unstable Hydraulic System
Recommended Oil Change Interval
- Engine oil → 250–500 working hours
- Hydraulic oil → 2,000–4,000 working hours
- Gear oil → ±1.000 working hours
Checklist Harian Operator
Before excavator used, it's good for operators to do so checklist following:
- check oil level
- check the color of the oil
- check for leaks
- check initial temperature
Conclusion
By choosing the right engine oil for the Komatsu PC100, increase your chances of:
- extend machine life
- reduce additional maintenance costs
- maintain unit productivity excavator
Consider specification / oil standards, viscosity was and working conditions excavator so you can choose the right oil for excavator that you use.
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