Haima M3. Service Manual - part 7

 

Fuel System 1C-8 

 

1.  Loosen the special tool unit.   

12.  Connect the main fuel hose with main fuel 

pipe.  

13.  Complete the inspection work after repair 

(see Inspection Work after Repair).   

Fuel Pump Assembly Dismantling 
/Mounting  

Dismantle /Mount Fuel Pump Assembly (see 
Cylinder Dismantling/Mounting) 

Warning 

  Fuel pump assembly cannot be disassembled   

Inspection of Fuel Pump Assembly   

Simulation Test   

Inspect the fuel pump’s working condition (see 
Fault Diagnosis, Inspection of Engine Control 
System’s Working Condition, Inspection of Fuel 
Pump’s Working Condition).   

  If the condition is abnormal, conduct further 

inspection to the fuel pump assembly.   

Inspection of Conducting/Non-conducting 
State  

Notice 

  Inspection below can be conducted if 

necessary  

1.  Loosen the accumulator’s negative cable.   

2.  Remove the second-row seats (see Seats, 

Second-row Seats Dismantling /Mounting).   

3.  Dismantle the oil tank’s repair cover plate.   

4.  Loosen the fuel pump assembly’s connector.   

5.  Inspect the conducting/non-conducting state 

between fuel pump or connector’s wiring 
terminal B and wiring terminal D. If it is in 
conducting state but the simulation test is 
abnormal, inspect if the circuit suffers 
short/open circuit. If it is in non-conducting 
state, replace the fuel pump assembly.   

 

Inspection of Open/Short Circuit   

1.  Inspect if there is open/short circuit on the 

following wiring harnesses. If there is, repair 
or replace corresponding wiring harness:   

Open Circuit   

  Earting circuit (between fuel pump assembly’s 

connector D and the vehicle body GND) 

  Power circuit (between the fuel pump relay 

connector A and fuel pump assembly 
connector B, and there is public connector) 

 

Short Circuit   

  The circuit between the fuel pump assembly 

connector B and fuel pump relay connector E, 
in which there is public connector and ground 
short circuit (electrical ground) 

2.  Remount the fuel pump assembly connector.   

3.  Remount the oil tank’s repair cover plate.   

4.  Remount the second-row seats (see Seats, 

Second-row Seats Dismantling /Mounting).   

5.  Remount the accumulator’s negative cable.   

Inspection of Fuel Pump’s Maximum 
Pressure  

Warning 

  Fuel overflow or leakage is dangerous, and the 

fuel is combustible, which may lead to personnel 
injury and property loss. Due to this, 
under-mentioned operations shall not be started 
until the engine stops.   

Caution 

  Dismantling/mounting quick connector before 

cleaning will lead to damage of the fuel pipe 
and quick connector. Due to this, cleaning to 
the quick connector’s contacting zone is a must 
before dismantling /mounting, in order to make 
sure that no foreign objects enter the oil pipe 

Fuel pump relay 

 

Fuel System 1C-9 

 

and connector. 

Notice 

  The following tests can be conducted if 

necessary  

1. Complete 

preparatory 

work before repair (see 

Preparatory Work before Repair) 

2.  Loosen the accumulator’s negative cable.   

Caution 

  To avoid the quick connector’s damage or oil 

leakage, follow the “Explanations on plastic 
fuel pipe dismantling/ mounting” to complete 
the under-mentioned work (see the Fuel 
System, Explanations on Plastic Fuel Pipe 
Dismantling) 

3.  Dismantle the main fuel hose (fuel supply 

pipe assembly) from the main pipe 
(vaporation rigid pipe).   

4.  Turn the switch handle to the position 

illustrated in the figure to block the special 
tool’s port.   

5.  Push the special tool’s quick connector into 

the main pipe (fuel rigid pipe) till there is a 
“click” sound.    

6.  Put the hose into a vessel in order to avoid the 

fuel overflow.   

 

7.  Remount the accumulator’s negative cable.   

Caution 

  Wrong connection with other wiring terminals 

may lead to fault, and so caution is needed 
during the connection process.   

8.  Connect the DLC’s wiring terminal F/P with 

the vehicle body’s earthing point GND with a 
jumper wire.   

 

9.  Turn the ignition switch to the “ON” position to 

make the fuel pump run, and measure the fuel 
pump’s maximum output oil pressure.   

Fuel pump’s maximum output oil pressure: 650～
900kpa 

10. Turn the ignition switch to the “OFF” 

position and loosen the jumper wire.   

If the maximum output oil pressure goes 
beyond the specified range, inspect items below:   

—Fuel pump relay (see Inspection of Fuel Pump 
Relay) 

—If the fuel filter (LV, HV) suffers blockage.   

—If the fuel pipeline suffers blockage or leakage.   

11.  Dismantle the special tool.   

Caution 

  To avoid the quick connector’s damage or oil 

leakage, follow the “Explanations on plastic 
fuel pipe dismantling” to complete the 
under-mentioned work (see the Fuel System, 
Explanations on Plastic Fuel Pipe Dismantling) 

12.  Remount the main fuel hose (fuel supply pipe 

assembly).  

13.  Complete the inspection work after repair (see 

Inspection Work after Repair) 

Inspection of Fuel Pump Oil Pressure 
Maintenance  

Warning 

  Fuel overflow or leakage is dangerous, and the 

fuel is combustible, which may lead to 
personnel injury and property loss. Due to this, 
under-mentioned operations shall not be 
started until the engine stops.   

Caution 

  Dismantling/mounting quick connector before 

cleaning will lead to damage of the fuel pipe 
and quick connector. Due to this, cleaning to 
the quick connector’s contacting zone is a must 
before dismantling /mounting, in order to make 
sure that no foreign objects enter the oil pipe 

Jumper wire

 

Fuel System 1C-10 

 

and connector. 

Notice 

  The following tests can be conducted if 

necessary  

1. Complete 

preparatory 

work before repair (see 

Preparatory Work before Repair).   

2.  Loosen the accumulator’s negative cable.   

Caution 

  To avoid the quick connector’s damage or oil 

leakage, follow the “Explanations on plastic 
fuel pipe dismantling” to complete the 
under-mentioned work (see the Fuel System, 
Explanations on Plastic Fuel Pipe Dismantling) 

3.  Dismantle the main fuel hose (fuel supply 

pipe assembly) from the main pipe (fuel rigid 
pipe). 

4.  Turn the switch handle along the direction 

illustrated in the figure to block the special 
tool’s port. 

5.  Push the special tool’s quick connector into 

the main pipe (fuel rigid pipe) till there is a 
“click” sound.    

6.  Put the hose into a vessel in order to avoid the 

fuel overflow.   

   

7.  Remount the accumulator’s negative cable.   

Caution 

  Wrong connection with other wiring terminals 

may lead to fault, and so caution is needed 
during the connection process.   

8.  Connect the DLC’s wiring terminal F/P with 

the vehicle body’s earthing point GND with a 
jumper wire.   

 

9.  Turn the ignition switch to the “ON” position 

to make fuel pump run for 10s or so.   

10. Turn the ignition switch to the “OFF” 

position. After 5 minutes, inspect the fuel 
pump’s oil pressure maintenance.   

Fuel pump’s oil pressure maintenance: ＞
410kpa(4.1kgf/cm2, 59psi) 

11.  Loosen the jumper wire.   

12.  Remove the special tool.   

13.  Connect the main fuel hose (fuel supply pipe 

assembly) with the main pipe(fuel rigid pipe).   

If the oil pressure maintenance fails to accord 
with standard, replace the fuel pump assembly 
(see Fuel Pump Assembly 
Dismantling/Mounting) 

14.  Confirm if around the quick plug’s bonding 

zone there is not oil leakage.   

15. Complete the inspection work after 

repair(see Inspection Work after Repair) 

Spray Nozzle Dismantling /Mounting   

(see the Control System) 

Inspection of Spray Nozzle 

(see the Control System) 

Fuel Vaporation and Absorption 
System 

Location of Combustion Vaporation & 
Absorption System’s Components (in Engine 
Compartment) 

 

Earthing 
jumper 

Air hose  Main fuel pipe 

Switch 
handle

 

Fuel System 1C-11 

 

 

Inspection of Carbon Canister Assembly   

1.  Remove the carbon canister.   

2.  Block the interface on the carbon canister’s 

ventilation side and the interface on the 
carbon canister’s electromagnetic valve side.   

3.  Blow air into the carbon canister’s oil tank 

interface, and Confirm if there is no air 
leakage (If there is air leakage, replace carbon 
canister).  

Inspection of Carbon Canister’s 
Electromagnetic Valve   

Conduct simulation test   

Inspect the carbon canister’s electromagnetic 
valve (see Fault Diagnosis, Inspection of Engine 
Control System’s Working Condition, Inspection 
of Carbon Canister’s Electromagnetic Valve); if it 
is abnormal, conduct further inspection to the 
carbon canister’s electromagnetic valve.   

                 

 

Inspection of Ventilation Condition   

Notice 

  The following tests can be conducted if 

necessary  

1.  Loosen the accumulator’s negative cable.   

2. 

Dismantle the carbon canister’s 
electromagnetic valve .   

3.  Inspect ventilation condition of the carbon 

canister’s electromagnetic valve   

(If normal, inspect if there is open /short circuit, 
and if the vacuum hose is correctly arranged or 
suffers distortion and air leakage. If abnormal, 
replace the carbon canister’s electromagnetic 
valve ).   

 

 

Inspection of Open/Short Circuit   

1.  Inspect if there is open/short circuit on the 

following wiring harnesses (If there is, 
overhaul or replace corresponding wiring 
harness).  

Open Circuit   

  Earthing circuit (the circuit between the carbon 

canister’s electromagnetic valve connector 1 
and ECU connector terminal 46, in which there 
is public connector) 

  Power circuit (the circuit between the carbon 

canister’s electromagnetic valve connector 
terminal 2 and main circuit breaker connector 
terminal D, in which there is public connector) 

 

 

 

Short Circuit   

  Electrical ground between carbon canister’s 

electromagnetic valve connector terminal 2 and 
ECU connector terminal 46, in which there is 
public connector. 

2. 

Remount the carbon canister’s 
electromagnetic valve.   

3.  Remount the accumulator’s negative cable.   

 

 

 

 

 

Connect with air hose 

Connect with cylinder

Connect with vacuum 
tube, to carbon canister’s 
electromagnetic valve

 

Main relay 

Connector on wiring harness’s side 

  (viewing from the electrode terminal side)

 

Intake and Exhaust System 

1D-1 

 

Chapter 4  Intake and Exhaust System   

Table of Contents 

 

Intake system ·······································································································1D-2 

Exhaust System·····································································································1D-2 

Accelerating System ·······························································································1D-3 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Intake and Exhaust System 

1D-2 

 

Intake system 

Intake System Dismantling/Mounting 

Warning 

  When the engine and intake system stay at high 

temperature, they can easily lead to personnel 
injury. Before mounting or dismantling the intake 
system, operation shall not be conducted until the 
engine has stopped and cooled down.   

  Fuel vapor is dangerous and combustible, which 

may lead to serious injury and damage. Due to this, 
avoid spark or naked flame at the place where there 
is fuel.   

  Fuel overflow or leakage is dangerous, which may 

lead to personnel injury and property loss. In 
addition, the fuel can irritate the skin and eye. Due 
to this, Oil Circuit Safety Procedure shall be 
always observed during the operation process.   

1.  Disconnect the accumulator’s negative cable.   

2.  Dismantle parts according to the sequence 

illustrated in the table.   

3.  Mount parts according to the sequence reverse to 

the dismantling process.   

 

1 Intake 

duct 

 

2 Intake 

hose 

3 Air 

filter 

 

Exhaust System   

Inspection of Exhaust System   

1.  Start the engine, and inspect if the exhaust 

pipeline suffers air leakage (If there is air 
leakage, overhaul the exhaust pipeline, or 
replace it if necessary).   

Exhaust System Dismantling/Mounting 

Warning 

  When the engine and exhaust system have yet to 

cool down, they may scald the skin. Due to this, 
dismantling work shall not be started until the 
engine has stopped and cooled down.   

1.  Loosen the accumulator’s negative cable.   

2.  Dismantle parts according to the sequence 

illustrated in the figure.   

3.  Mount parts according to sequence reverse to the 

 

Intake and Exhaust System 

1D-3 

 

dismantling process.   

1 

Front muffler assembly   

2 

Rear muffler assembly   

3 

Rear oxygen sensor 

4 

Three-way catalyst converter 

Accelerating System   

Accelerating System Dismantling/Mounting 

1.  Dismantle parts according to the sequence 

illustrated in the table; 

2.  Mount parts according to the sequence reverse to 

the dismantling process.   

1 

Accelerator pedal’s wiring harness 

2 Nut 
3 Accelerator 

pedal 

 

Notice 

  Connect the wiring harness with the accelerator 

pedal with caution, and insert the joint uprightly.   

 

 

 

 

 

 

 

 

 

 

 

Cooling System

 1E-1 

 

Chapter 5    Cooling System   

Table of Contents 

 

Warning on Cooling System Maintenance······································································1E-2 

Engine Coolant ·····································································································1E-2 

Inspection of Engine Coolant’s Liquid Level ····························································1E-2 

Replace Engine Coolant·····················································································1E-2 

Inspection of Engine Coolant Leakage····································································1E-3 

Inspection of Heat Sink Lid ··················································································1E-3 

Heat Sink Dismantling/Mounting················································································1E-4 

Fan Parts Dismantling/Mounting ··········································································1E-4 

Thermostat ····································································································1E-4 

Water Pump Dismantling/Mounting·············································································1E-5 

Fan Motor ···········································································································1E-5 

Fan Relay············································································································1E-5 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cooling System

 1E-2 

 

Warning on Cooling System 
Maintenance  

When the engine is running or the engine and heat 
sink are hot, do not dismantle the heat sink lid or 
loosen the heat sink’s drain valve because hot 
coolant and vapor may spout, which will result in 
serious casualties and damage to the engine and 
cooling system   

Turn off the engine, and conduct further operation 
after the engine cools down. Then, keep mindful 
when removing the heat sink’s filler lid, and wrap 
the filler lid with thick cloth and slowly turn it to the 
first stop position along the anticlockwise direction. 
When the pressure declines, turn it along the reverse 
direction;  

If there is not pressure, press the heat sink lid with 
cloth and dismantle it.   

Engine Coolant   

Inspection of Engine Coolant’s Liquid 
Level  

1.  Confirm if the coolant’s liquid level in 
subsidiary water tank ranges between FULL and 
LOW.  

If the engine coolant’s liquid level stays below 
LOW, open the subsidiary water tank’s lid and add 
the coolant near to the FULL mark.   

If there is no coolant in the subsidiary water tank, 
wait till the engine cools down, and open the heat 
sink’s filler lid to add coolant from the heat sink 
filler port till the coolant’s liquid level can be seen 
from the filler port. Then, mount the heat sink’s 
filler lid, and continue adding the coolant near to 
the FULL mark.   

Replace Engine Coolant 

1.  Dismantle the subsidiary water tank, drain the 

coolant in the subsidiary water tank, and clean 
the subsidiary water tank.   

2.  Take off the heat sink’s filler lid, and loosen 

the water tank’s drain valve to drain the 
coolant into a vessel.   

3.  Wash the heat sink with water till all colored 

marks have been removed.   

4.  Dry completely the heat sink and subsidiary 

water tank in the air.   

5.  Mount the water tank’s drain plug and 

subsidiary water tank.   

 

Warning 

Alcohol or methanol antifreeze may damage 
aluminum parts on the engine, and so alcohol or 
methanol shall not be used in the cooling system, 
and only the glycol-based coolant can be used.   

Only the softening (demineralization) water can 
be used to mix with the coolant, and water 
containing minerals will compromise the coolant’s 
effect.  

Engine coolant will result in damage to the 
lacquer surface, and so the engine coolant shall be 
rinsed out in no time when it touches the lacquer 
surface.  

6.  Refer to table below to select appropriate 

volume percentage for mixture of water and 
coolant. Add slowly the coolant into the 
water tank till the coolant reaches the filler 
port.  

Filling speed:1.0L(1.1USqt 、 0.9impqt)/min. 
[Maximum Value] 

Volume 

percentage 

Coolant 

protective agent

Water Coolant 

Proportion at 

20 {68ºF}

℃

 

Higher than 

-16 {3ºF}

℃

 

65 35 

1.054 

Higher than 

-26 {

℃

-15ºF} 

55 45 

1.066 

Higher than 

-40 {

℃

-40ºF} 

45 55 

1.078 

Drain valve

 

Cooling System

 1E-3 

 

 

7.  Open the heat sink’s filler lid, and add the 

coolant from the filler port till the coolant’s 
liquid level can be seen from the filler port. 

8.  Tighten the heat sink lid, and add the coolant 

near to the FULL mark from subsidiary water 
tank.  

9.  Start the engine and maintain the idling speed 

till the cooling fan begins to work.   

Notice 

  If the coolant temperature is over high, stop the 

engine to prevent the coolant from being 
overheated. 

10.  Conduct the following operations after the 

engine temperature rises: 

(1)  Make the engine run for one minute at the 

rotating speed of 4000rpm; 

(2)  Make the engine run for one minute at the 

idling speed; 

(3)  Repeat Step 1 and Step 2 for several times; 

(4)  Turn on the front/rear heater unit (if has), and 

confirm if there is hot air exhausted from the 
heater unit’s ventilation opening.   

11.  Stop the engine and wait till it cools down.   

12.  Confirm if there is coolant leakage.   

13.  Inspect the coolant’s liquid level. If the level 

is relatively low, add the coolant into the 
subsidiary water tank till it reaches the F 
mark.  

Inspection of Engine Coolant Leakage   

1.  Inspect the coolant’s liquid level.   

2.  Take off the heat sink lid.   

3.  Connect the heat sink lid tester and SST 

special maintenance tool with the heat sink’s 
filler port.   

Notice 

  If the pressure surpasses 123kPa {1.25kgf/cm2, 

17.8psi}, hose joint and other parts will be 
damaged, which will in turn lead to leakage.   

4.  Make the heat sink reach specified 

pressure: 

Pressure:123kPa{1.25kgf/cm2, 17.8psi} 

 

4.  Inspect if the pressure can be maintained. If 

cannot, inspect if the system suffers coolant 
leakage.  

Inspection of Heat Sink Lid   

Warning 

  When the engine is running or the engine and 

heat sink are hot, do not dismantle the heat sink 
lid because hot coolant and vapor may spout, 
which will result in serious casualties and 
damage to the engine and cooling system   

  Turn off the engine, and conduct further 

operation after the engine cools down. Then, 
wrap the heat sink lid with thick cloth carefully, 
and slowly turn it to the first stop position 
along the anticlockwise direction. When the 
pressure declines, turn it along the reverse 
direction;  

  If there is not pressure, press the heat sink lid 

with cloth and dismantle it.   

1.  Use the SST special service tool to connect 

the heat sink lid with the tester.   

2.  Increase the pressure little by little.   

3.  Inspect if the pressure stays within the 

specified range. If the pressure can keep for 
10s, it indicates that the heat sink lid is 

 

Cooling System

 1E-4 

 

normal.  

Pressure range:94-122kPa{0.95-1.25kgf/cm2, 
13.5-17.7psi} 

 

Heat Sink Dismantling/Mounting 

Fan Parts Dismantling/Mounting 

1.  Disconnect the accumulator’s negative cable; 

2.  Drain the engine coolant; 

3.  Dismantle the front grille; 

4.  Dismantle the heat sink bracket bolt and 

condenser fixing bolt; 

4.  Dismantle the subsidiary water tank’s hose 

(connect with the heat sink end); 

5.  Dismantle parts according to the sequence 

illustrated in the table; 

6.  Mount parts according to the sequence 

reverse to the dismantling process.   

 

1  Upper water pipe   
2 Lower 

water 

pipe 

 

3  Fan wiring harness connector 
4  Subsidiary water tank assembly   
5 Fan 

assembly 

 

6 Heat 

sink 

assembly 

 

Thermostat 

Thermostat Dismantling/Mounting 

1.  Drain the engine coolant. 

2.  Dismantle parts according to the sequence 

illustrated in the table. 

3.  Mount parts according to the sequence 

reverse to the dismantling process. 

 

①

 Upper heat sink hose   

②

 Thermostat lid   

③

 O-ring   

④

 Thermostat Mounting Attentions   

Instructions for installing the thermostat 

1.  Mount the thermostat onto the thermostat 

housing, pay attention to the thermostat’s 
direction, with clamping pin facing upward.   

 

Thermostat Inspection   

1.  Inspect thermostat according to items below. 

—Valve temperature when being turned on or off. 

—Valve’s critical temperature in full opening or 

full closing state. If technical requirements 
cannot be met, replace the thermostat.   

Condition Action 

Temperature℃

Temperature rising 
process  

Initial 
opening  

81 

(

8.8-12.7)N*m 

(

4.5-6.0)N*m

Clamping pin 

 

Cooling System

 1E-5 

 

Full 
opening  

93 

Start 
closing  

90 

Temperature 
decline process   

Full 
closing  

79 

Water Pump Dismantling/Mounting 

See Engine Water Pump Dismantling/ Mounting 
for the water pump dismantling/ mounting. 

Fan Motor 

Fan Motor Inspection   

1.  Confirm if the accumulator has been fully 

charged. 

2.  Connect the accumulator’s positive electrode 

and amperemeter with the fan motor plug. 

3.  Confirm if the fan motor runs stably while 

being driven by standard current. Replace fan 
motor if it fails to meet technical 
requirements.  

 

Standard Current: 

①

Connected, High-speed Action 11-12.5A [12V] 

①

Disconnected, Low-speed Action 9-10.5A [12V] 

Fan Motor Dismantling/Mounting 

1.  Dismantle the cooling fan. 

2.  Dismantle parts according to the sequence 

illustrated in the table. 

3.  Mount parts according to the sequence reverse 

to the dismantling process. 

 

 

 

1 Cooling 

fan 

blade 

 

2 

Fan motor assembly   

Fan Relay 

Inspection of Fan Relay 

1.  Disconnect the accumulator’s negative cable   

2.  Dismantle the fan relay from the relay box.   

 

 

 

Use the ohmmeter and 12V power supply to 
inspect the fan relay’s quality. If the relay is unable 
to run normally or meet technical requirements, 
replace the fan relay. See table below for the relay 
inspection: 

Step

Port 

Compliance 

standard 

1 Ohmmeter 

tests 

Infinite 

High-speed relay socket

Low-speed 
relay socket 

Connect with the ECU control end 

①

 

Connect with the power supply end 

 

Cooling System

 1E-6 

 

resistance at both ends of 
Pin 30 and Pin 87 

resistance  

2 

Both ends of Pin 85 and 
Pin 86 directly link with 
12V power supply   

Hear the 
relay’s 
actuation 
voice  

3 

Keep the relay’s 
actuation state, and again 
use the ohmmeter to test 
resistance at both ends of 
Pin 30 and Pin 87 

Resistance is 
zero  

Remark 

High/low-speed relay pins have the 
same definition 

Relay Diagram   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Accessory-Belt

 1F-1 

 

 

Chapter 6  Engine Accessory-Belt   

Table of Contents 

Driving Belt ·········································································································1P-2 

A/C Compressor Multi-wedge V Belt Adjustment ····························································1P-2 

Power Steering Pump Belt Adjustment ·········································································1P-3 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Accessory-Belt

 1F-2 

 

Driving Belt   

If necessary, inspect the driving belt’s distortion 
and tension.   

Inspection of Driving Belt’s Distortion   

Notice: 

  After 30 minutes since the automobile engine 

stops, inspect the belt distortion with a belt 
tensiometer, in order to confirm if the belt 
tension stays within the standard value.   

  If the belt tension goes beyond the specified 

range, adjust the driving belt (see Adjustment 
of Driving Belt) 

 

 

 

 

Inspection of Driving Belt Tension   

Notice 

  The inspection shall be conducted after the 

engine cools down   

Use SST to inspect the tension of belt between two 
driving wheels.   

  If the tension goes beyond the specified range, 

make adjustment (see Adjustment of Driving 
Belt) 

 

 

A/C Compressor Multi-wedge V Belt 
Adjustment  

1.  Loosen appropriately the nut on the power 

generator’s pivot bolt.   

2.  Loosen the power generator’s fixing bolt, and 

then tighten it for about 5N.m, in order to 
avoid the pulley’s deflection.   

 

 

3.  Use the adjusting bolt to adjust the belt 

tension and belt deflection to the standard 
value.  

4.  Tighten the power generator’s pivot nut.   

Tightening torque:  39.5±4N·m 

5.  Tighten the power generator’s fixing bolt.   

Tightening torque: 20±2N·m 

 

 

 

 

When measuring 

When mounting

Adjust bolt 

Fix power generator bolt 

Power generator pivot nut 

 

Accessory-Belt

 1F-3 

 

Power Steering Pump Belt 
Adjustment  

1.  First, loosen the tension pulley’s nut B, and 

then tighten it for about 5N.m, in order to 
avoid the pulley deflection.   

 

 

2.  Adjust the stud bolt A to drive the tension 

pulley’s location change in the tension pulley 
bracket’s slot, so as to adjust the belt tension.   

3.  After the tension meets requirements, tighten 

the tension pulley nut B, Tightening 
torque:40～48N.m 

Notice 

  If mounting new driving belt or running 

driving belt for not greater than 5minutes, 
adjustment shall be made according to the new 
part’s standard value.   

  If running the driving belt for more than 5 

minutes, adjustment shall be made according 
to the old part’s standard value.   

 

 

 

Distortion (mm/98N) 

Driving Belt 

New 

Old 

A/C Compressor Belt  600N-700N500N-600N

Power Steering Pump Belt400N-500N300N-350N