New Holland LW170 Service Manual page 21

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IDENTIFICATION - 2675.150.00.1
MARKING: lW170
ENGINE
Make and model ........................ CUMMINS C8.3-C
Net power at the flywheel ...... (ISO 9249) 125 KkW
Max power speed .................................... 2300 rpm
Max torque ............................................ 69.6 daNm
Max torque speed .................................... 1500 rpm
Diesel type, 4 stroke, direct injection, turbocharged
Number of cylinders ............................................. 6
Bore x stroke ................................... 114 x 135 mm
Total displacement .................................. 8270 cm
Valve/rocker operation lash:
- intake ..................................................... 0.30 mm
- exhaust .................................................. 0.60 mm
Firing order ........................................... 1-5-3-6-2-4
Minimum starting temperature: ..................... - 20°C
Engine coolant high temperature sender setting ....
................................................................ 101+2 °C
Engine oil low pressure switchsetting .....................
........................................................... 0,15±0,1 bar
ENGINE SPEEDS
Minimum idle speed (no load) ................... 800 rpm
Maximum idle speed (no load) ................ 2470 rpm
Converter stall speed ...................... 2330 ± 50 rpm
Steering stall at idle speed > ..................... 600 rpm
Attachment stall ............................... 2415 ± 50 rpm
Full stall ......................................... 1980 ± 100 rpm
TORQUE CONVERTER
Type: Niigata 12.5" (MS370) single-stage, single-
phase
Main converter pressure ................................. 5 bar
Converter safety valve pressure .................. 7.2 bar
TRANSMISSION
Maximum ground speeds (forward/reverse) in kph
(with 20.5 R25 tires):
Forward speed kph
st
1 7.2
nd
2 12.5
rd
3 21.8
th
4 36
Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)
SPECIFICATIONS - WHEEL LOADER LW170
Reverse speed kph
st
1 7.8
nd
2 13.5
rd
3 23.5
th
4 38.5
Oil pump flow rate (at 2300 rpm) ............................
.................................................... Front 99.6 lt/min.
..................................................... Rear 32.6 lt/min.
Main pressure on the control valve ....... 21 ÷ 24 bar
Transmission disengagement sensor ..... 15 ± 1 bar
Transmission induction sensors to gear teeth adjust
clearance ........................................... 0.5
Transmission oil high temperature sensor setting ..
............................................................... 122 ± 3°C
3
AXLES
Axles complete with disc brakes in oil bath.
Self-locking differentials.
Planetary final drives.
Stiff front axle, support structure type
- reduction ratio ...................................... 1 : 23.400
Oscillating rear axle, support structure type
- reduction ratio ...................................... 1 : 23.400
TiRES
Type .................................. 20.5 R25 XHA tubeless
Inflating pressure
- Work:
- Transfer:
Wheel tightening torque ........................ 78.8 daNm
BRAKES
Delivery brakes pump at nominal speed ..... 32 lt/min
Accumulator recharge start pressure ..... 80 ± 5 bar
Accumulator recharge end pressure .... 110 ± 5 bar
Accumulator pre-charge pressure (1.4 lt) ..... 45 bar
Transmission disengagement pressure switch
setting ........................................................... 15 bar
Brake oil low pressure sensor setting ........... 60 bar
Brake lights pressure switch setting ............ 1.8 bar
Parking brake applied pressure switch setting .......
......................................... ON 10 bar - OFF 15 bar
STEERING SYSTEM
Cylinders ........................................ 2 double-acting
- bore x stroke ................................. 80 x 422 mm
Stand-by/main priority valve setting ........... 206 bar
LW170-LW190
÷
front = 3.25 bar
rear = 1.5 bar
front = 2.00 bar
rear = 2.00 bar
0.8 mm