engine oil handling for hpcr
TRANSCRIPT
MAINTENANCE FOWA
HEN00015-00
MAINTENANCE COURSE
Engine Oil Handling for HPCRKomatsu Engine
MAINTENANCE FOWA
FOWA stands for Fuel, Oil, Water and Air
HPCR:High Pressure Common Rail
1 High quality engine oil is required .................................... 32 Example of engine failure due to engine oil
(1) A failure due to nonconformity engine oil grade................ 4(2) A failure due to low viscosity engine oil ......................... 5(3) A failure due to low level of engine oil ........................... 6
7 points of Engine oil handling ........................................... 7Point 1 Check item before starting ....................................... 8Point 2 When selecting engine oil ....................................... 9Point 3 When purchasing engine oil .................................... 10Point 4 When planning the engine oil replacement .................. 11Point 5 When replacing engine oil filter ............................... 12Point 6 When replacing engine oil (1)
Be careful about foreign matter getting into the oil ........ 13Point 7 When replacing engine oil (2)
Re-check the engine oil level .................................. 14
Contents
3
Optimum Komatsu DH oilto diesel engine for
KOMATSU machinery !!
Keep a combustion cham
ber clean
Disperse soot finely
Based on data comparisonmade by Komatsu Komatsu DH
series oil High qualityCommercially
availableDH-1 oil
APICF-4
CF
CD
JASO: Japanese AutomobileStandards Organization
API: American PeteroleumInstitute
1 High quality engine oil is required
(1) High quality engine oil is required for theexhaust gas regulation
(2) Use Komatsu genuine oil DH serieswhen replacing and refilling engine oil
4
(1) A failure due to nonconformity engine oil grade
2 Example of engine failure due to engine oil
OK NG
EO15W40-DH Commercially available oil15W40-CD
Better detergency performance oil
DH oil disperses soot finely
Prevent piston ring sticking
Poor detergency performance oil
CD oil keeps soot size as it is
Piston ring sticking faster
Soot willaccumulate
in piston ringgroove
Less soot will
accumulatein piston ring
groove
5
(2) A failure due to low viscosity engine oil
6
(3) A failure due to low level of engine oil
7 points ofEngine oil handling
8
When the oil level is too high
The oil may cause overheating due to heat generation or power loss.
When the oil level is too low
The lubricating system becomes in short supply of oil by sucking air and pistons and bearings may seizure in a short period of time.
Engine oil filler port
BetweenH and L marks
Point 1 Check item before starting
(1) Check the oil level before starting without fail.(2) Set the engine oil level between H and L mark.
9
Point 2 When selecting engine oil
(1) Use adequate multi-grade oil as engine oil in accordance with the atmosphere temperature of the job site.(2) Multi-grade oil has resistance to temperature change and keeps appropriate viscosity.
Furthermore, it has good lubricating property and prevents wear of equipment.(3) When changing the type of engine oil, replace all the oil of specified capacity. Mixing of oil remaining in oil passages may cause no trouble.
-30 -20 -10 0 10 20 30 40 50 C-22 -4 14 32 50 68 86 104 122F
Ambient TemperatureReservoir Fluid Type
RecommendedKomatsu Fluids
Engine oil pan Engine oil
Komatsu EOS0W30
Komatsu EOS5W40
Komatsu EO10W30-DH
Komatsu EO15W40-DH
Komatsu EO30-DH
10Point 3 When purchasing engine oil
DH series
11
Point 4 When planning the engine oil replacement
(1) For oil change, observe the oil change interval specified in the Operation and Maintenance Manual.(2) Engine oil deteriorates with time and heat even if high quality oil is used.(3) Ideal oil change interval extends the machine life.
Observe specifiedoil change intervalcertainly.
12Point 5 When replacing engine oil filter
(1) Komatsu genuine oil filter features improved filtration performance and extended life.(2) Be sure to use Komatsu genuine parts and replace the filter when changing the engine oil.
Comparison of conventional and new Komatsu genuine oil filters [for PC200 series machines]
1. Comparison of conventionaland new filter
2. Change in filter material
Conventionalfilter
2 layer filter
New filter
3 layer filter
New oil filter has three types of filtration layer and catches dustand sludge both at the surface and inside the filter material.(Multilayer overlapped fiber filter material)
Current material
Cellulose filtermaterial
Micro fiberglassfilter material
Improved material to meet HPCR
Coarse layer Intermediate layer Minute layer
13
Point 6 When replacing engine oil (1)
Be careful about foreign matter getting into the oil(1) To prevent water and foreign matter from getting into the oil, with special care.(2) Do not use dirty hoses and containers for refill.(3) Avoid oil replacing outdoors in a rainy day, windy day, or dusty atmosphere.
14Point 7 When replacing engine oil (2)
Re-check the engine oil level(1) After replacing the engine oil and oil filter, start the engine and recheck the oil level after the engine
stop. If the oil is insufficient, add it.(2) Check for oil leakage in the vicinity of the filter mounting surface.
* Refer to the Operation and Maintenance Manual for details of replacement interval and method.
H
L
H
LAdd
Oil level
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HEN00015-00 Materials and specifications are subject to change without notice.is a trademark of Komatsu Ltd. Japan.