Section 1
Section 1
Engine
Engine
1-1
1-1
THDC / THDCP - 954 / 955 / 974 (Rev. 06/03)
THDC / THDCP - 954 / 955 / 974 (Rev. 06/03)
DRAIN PLUG
DRAIN PLUG
OIL
OIL
FILTER
FILTER
ELEMENT
ELEMENT
OIL
OIL
FILLER
FILLER
CAP
CAP
OIL
OIL
DIPSTICK
DIPSTICK
WASHER
WASHER
Illustr
Illustration 1-1.
ation 1-1. Cummi
Cummins QSM1
ns QSM11-C330 Engine Service Points
1-C330 Engine Service Points
Introduction.
Introduction.
This engine is pressure lubricated,
This engine is pressure lubricated,
generating 330 horsepower at 2100 governed rpm
generating 330 horsepower at 2100 governed rpm
and delivering 1170 ft-lbs of peak torque at 1400
and delivering 1170 ft-lbs of peak torque at 1400
rpm.
rpm. Oil press
Oil pressure is suppli
ure is supplied by a gear-type lubr
ed by a gear-type lubri-
i-
cating oil pump and controlled by a pressure regu-
cating oil pump and controlled by a pressure regu-
lator
lator.
. The filter byp
The filter bypass valve ensures that a sup-
ass valve ensures that a sup-
ply of oil, in the event the filter becomes plugged,
ply of oil, in the event the filter becomes plugged,
is present.
is present. One full flow oil fil
One full flow oil filter is incor
ter is incorporated in
porated in
the lubricating system to provide maximum
the lubricating system to provide maximum
cleansing and filtration of the engine lubricating
cleansing and filtration of the engine lubricating
oil.
oil. If additi
If additional engine infor
onal engine information is
mation is needed,
needed,
refer to the engine operation and maintenance
refer to the engine operation and maintenance
manual supplied with the truck.
manual supplied with the truck.
Checking the
Checking the Lubri
Lubricating Oil
cating Oil
(Illustration 1-1)
(Illustration 1-1)
..
The engine lubricating oil should be checked daily
The engine lubricating oil should be checked daily
on the oil dipstick to ensure the engine has the
on the oil dipstick to ensure the engine has the
proper amount of oil for operation.
proper amount of oil for operation.
Changing the Oil and Filter Element
Changing the Oil and Filter Element
(Illustration
(Illustration
1-1)
1-1)
..
The engine lubricating oil should be
The engine lubricating oil should be
changed monthly or every 250 hours, whichever
changed monthly or every 250 hours, whichever
comes fir
comes first.
st. The oil fil
The oil filter should be replac
ter should be replaced each
ed each
tim
time the engine oil is c
e the engine oil is changed
hanged.
. Ref
Refer to the
er to the
Fuel
Fuel
and Lubricant Specifications
and Lubricant Specifications
chart in the back
chart in the back
of this manual for the proper grade of oil to use.
of this manual for the proper grade of oil to use.
WARNINGS:
WARNINGS:
SS
Park machine on a level surface, apply
Park machine on a level surface, apply
parking brake, block wheels and Lock Out &
parking brake, block wheels and Lock Out &
T
Tag
ag Out while
Out while servicing machine.
servicing machine.
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