KPL /LPH TEST OF VEH/EQPT/PLANTs
1.
As per HQ DGBR letter No: 55041/KPL/LPH/DGBR/22/E4
Tech dated 02 Nov 2017, the KPL/ LPH test of all veh/eqpt/plants should
be carried out as and when
i)
Initial induction in to BRO.
ii) Changing
in deployment in deferent terrain and climatic condition.
iii) Fitment
of new/ overhauled engine assy.
iv) After
major repair/ overhauling of engine assy.
v)
After base overhaul.
vi) Change
of classification.
vii) After
fitment of new/ overhauled FIP assy.
In a normal condition, KPL/ LPH test
of all veh/eqpt/plants should be carried out in an internal of 10,000 Kms for vehs and 600 Hrs for
Eqpt/ Plants. The endorsement in this regards, should be made in the log
book of concerned veh/eqpt/plant in red ink by work shop. KPL/ LPH should also
be mentioned on concerned duty slip/ log sheet and mileage card of each veh/eqpt/plants
by user unit.
2. KPL/ LPH test is a procedure to know
the approximate consumption of fuel of Veh/Eqpt/Plant on its utilisation. The
fuel consumption of a veh/eqpt/plant is depending up on the different conditions
and applications. At the time of KPL/ LPH test all applications are not being
done since it is not practical on ground. Though, the
figure mentioned in the KPL/HPL test is not
a correct fuel consumption of it and is an
approximate consumption. The different conditions and applications on fuel
consumption of veh/eqpt/plants are as under:-
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For Vehicles
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a)
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Road conditions: The
surface of the road is the main factor. When a veh running on a good surfaced
road, the fuel consumption should be less than when it is running on an
unsurfaced rough road.
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b)
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Terrain: The
fuel consumption should be high on a hilly area than that of a plain area.
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c)
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Loading capacity and load: The load
in the vehicle should be appropriate to the loading capacity. Excess load
will cause excess fuel consumption.
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d)
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Efficiency of the driver: If the
driver is efficient, he will apply the correct gear on correct place, will
not apply pressure on paddles of brake and clutch, will not quick rice the
engine and he keep vehicle in economic speed.
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e)
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Climatic condition: If the
weather condition is bad, that also effect on fuel high consumption. Due to
low visibility, even in a plain straight road, the driver should not able to keep
the veh in economic speed and he compelled to brake frequently to avoid
accident.
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For Equipment &
Plants
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a)
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Job on which material: The
hardness/softness of the working material, rock, sand, mixer sand & mud,
water etc will give different fuel consumption.
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b)
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Job applications: Excavation
& loading by back hoe loader, cutting, loading, pushing & pulling;
levelling etc by bucket, side cutting and sliding, static job and movement
job etc will give different fuel consumption depending on its load.
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c)
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Swing angle: The
swing angle is also effect on fuel consumption. The good swing angle is within
45 degree towards both sides. Swing beyond 45 degree with load will causes
excess fuel consumption.
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d)
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Attachments: Fuel
consumption on using different attachments is varies.
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e)
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Engine RPM: The
working RPM of engine is different on different job in relation with material
condition. The correct working RPM should be adjusted accordingly on ground
condition.
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HOW TO CARRY OUT KPL/ LPH TEST
3. The KPL/ LPH test should be carried out
by maintaining work shop by a Ch/ Mech or above rank. After receipt of work
order for KPL/ LPH test from user unit, the following steps to be carried out
before proceeding of the test run.
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a)
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Brake system: The
brake system should be checked for bindings and adjusted if required.
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b)
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Clutch system: The
clutch system should be checked for slippage and adjusted if required.
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c)
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Inertia brake: The
inertia brake system (if fitted) also checked for bindings and adjusted if
required.
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d)
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Fuel filter and water separator: Check
fuel filter and water separator for its serviceability. Replace it if found
chocked.
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e)
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Air cleaner: Air
cleaner should be checked for its serviceability and replace if found
chocked. In wet type air cleaner, check quality of oil and its level. If
excess oil is found, that should be drained accordingly to the required
level.
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f)
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Fuel system: Check
fuel system for any leakage and also check tightness of bolt on over flow
lines.
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g)
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Tyre size and air pressure: The
tyre size and tyre inflection should be as per recommendation of the
manufacture. Excessively worn out tyre should be avoided for KPL/ LPH test.
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h)
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Engine RPM: The
engine RPM should be arrested on full load RPM as per manufactures
recommendation. (Every engine has a maximum RPM that
is beyond the requirement of full load application.)(All driver and operator
have a tendency to keep high RPM on KPL/ LPH test.)
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j)
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Km/ Hrs Meter: The
Kilo meter and Hour meter should be checked for its serviceability &
correctness and replace it if found damaged or not working.
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4. Try to carry out the test at work site,
where that veh/eqpt /plants regularly utilising, on a user unit utilisation
trip/ job not less than 20 Kms / 1 Hrs. It is not preferable that the test has been carried out
on a plain road near to the work shop area and veh deployment at a quarry side
/ hilly area.
5. Load the veh with the appropriate load
as per loading capacity of the veh on one side and on return trip it should be
empty.
6. Warm up the engine before test run then
fill up the fuel tank up to the maximum capacity on a level area. Or fuel can
be feed from a filled measuring jar/ jarrican with cap by local arrangements.
Then the return fuel line should be entered in to the measuring jar/ jarrican
without fail.
7. Note down the starting Kms/ Hrs meter
reading, then start KPL/ LPH test run. (Preferably on a Govt job). After
completion of test run, again note down the finishing Kms/ Hrs meter reading.
8. Refill the fuel tank on a level area up
to the maximum level (Preferably on the same place where fuel filled before test
run) or measuring jar/ jarrican with carefully so that the fuel should
not be spill out. Note down the correct
quantity of fuel refilled.
9. If
the test run has been carried out on other than the user unit requirement, then
the Kms/ Hrs run (not less than 20 Kms/ 1 Hrs) covered by the veh/eqpt should
be entered on duty slip/ log sheet of the veh/ eqpt by the work shop
representative who carried out the test, as “KPL/ LPH test run” and make his
signature with rank.
10 Now calculate KPL/ LPH on back side of
work order as under:-
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KPL/ LPH
test carried out on _______ and details as under:-
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Starting
Kms /Hrs reading.
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=
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X Kms
/Hrs.
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Finishing
Kms/Hrs reading.
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=
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Y Kms/
Hrs.
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The test
run.
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=
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Y Kms/ Hrs
– X Kms /Hrs. (Say R Kms/
Hrs.)
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The fuel
consumed.
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=
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Fuel
refilled. Say F Litre.
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Then,
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KPL. (For vehicles.)
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=
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R
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F
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LPH. (For
eqpt/plants)/ (static run)
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=
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F
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R
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11. Make signature on calculation sheet with
name and rank then hand over work order to R&I / E4 section to fix the KPL/
LPH then made entry in log book of concerned veh/eqpt/plant.
12. Never do any KPL/
LPH entry in to the log book without physical check-up, in the base of same
make and type of other veh/eqpt/plant, since the engine condition
/efficiency of all machines of same make & type should be little different
to the other one.
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