Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
16
Section VII Specification of Main Attachments and Accessories
Lubrication
system
Engine oil pump type Externally engaged gear pump
Flow rate of engine oil pump ≥ 23L/m (at 1,000r/m and 0.4MPa)
≥ 23L/m (at 1,800r/m and 0.44MPa)
Open pressure of engine oil pump
relief valve
0.7±0.08MPa
Engine oil filter type Filter element type
Cooling
system
Water pump type Centrifugal type
Flow rate and head of water pump
(water temperature at 80±5ºC)
Head ≥6.5m (at 3,000r/m) at 100L/min flow rate;
Head ≥12m (at 4,000r/m) at 120L/min flow rate;
Thermostat type Pellet thermostat
Temperature of thermostat Initial open: 82ºC; full open: 95ºC
Fan type Independent electric fan
Electric
system
Preheating plug type Ceramic type
Voltage of preheating plug 12V
Starter specification
12V，2.8kW
Alternator specification 14V，90A
Battery voltage 12V
Intake system Turbocharger
Radial flow variable section turbocharger
The top speed of turbocharger is ≤220,000r/m, with
turbocharger ratio at ≤2.2.
EGR
Type of EGR valve Position feedback type
Voltage of EGR valve position
sensor
5V
Electronically
controlled
common rail
fuel system
Fuel filter type Spin-on type, with fuel-water separator, manual fuel
delivery pump, and diesel heater
High pressure fuel pump BOSCH CP1H, radial three-plunger pump, with fuel
delivery fuel pump and solenoid valve control
Fuel injector BOSCH CRI2.2, solenoid valve control
High pressure common rail Maximum rail pressure: 160MPa
Electronic control unit (ECU) BOSCH EDC17, with working voltage at 12V
Crankshaft speed sensor
Working clearance: 0.5～1.2mm
Camshaft position sensor
Working clearance: 0.5～1.5
Air flowmeter HFM6, with working voltage at 12V and flow measurement
range at 40~840kg/h.
Water temperature sensor NTC type
Rail pressure sensor Voltage output: 0.5~4.5V
Accelerator pedal position sensor Voltage: 5V
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