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2 Maintenance and Service / 2.2 Maintenance and Service | PDF pages 57-64
2.2 Maintenance and Service
2.2 Maintenance and Service
3. Check that the fixing bolts of the high voltage battery box
are free of looseness and falling off, and the box body is not
2.2.1 Contents of Maintenance and Service
deformed.
2.2.1.1 Maintenance Provisions
4. The surface and inside of the charging socket/charging gun
caution
are dry and free of dust and other foreign matters, and the
cover plate is sealed reliably.
If you have any questions about how to maintain your
vehicle, please contact a Windrose authorized service
5. Check the terminals of the charging socket are yellow,
station directly for help.
blackened or ablated.
It is necessary to carry out routine maintenance and regular
6. Check the SOC of battery packs is abnormal and confirm
maintenance on the vehicle, which can ensure the normal
the battery fault feedback.
use, efficiency, reliability of the vehicle and a good ride
7. Check the maximum voltage, minimum voltage, average
experience, and reduce the possible maintenance costs
voltage, maximum differential voltage, maximum
incurred.
temperature, minimum temperature, average temperature
For the routine maintenance items that can be completed by
and maximum temperature difference of the high voltage
the user himself according to the manual, the user can
battery pack.
complete the routine maintenances in accordance with the
8. Carry out charging test on the vehicle in locked and
relevant instructions of this manual.
sleeping state. After the vehicle is powered off and fall into
The systems installed on the vehicle are sophisticated and
sleeping state, insert the charging gun into the charging
there are strict after-sales service requirements for new
port to wake up the vehicle and read the charging current
energy vehicles in accordance with national laws and
and charging power on the charging pile.
regulations. Therefore, Windrose recommends that you
Electric Drive Axle System
should complete the regular maintenance of the vehicle at
Windrose authorized service station.
1. Check the lubricating oil in electric drive axle.
caution
2. Check the high voltage cables of the electric drive axle
MCU, the low voltage harness of MCU and TCU and the
Please keep regular maintenance records as the basis
harness of sensors are firm, whether the harness is
for the "warranty".
damaged, and whether the fixing is protected in place.
2.2.1.2 First Maintenance
3. Check the cooling water pipe and interface of the electric
The first maintenance should be completed at an authorized
drive axle are leaking, bending, and whether the clamp is
maintenance service station after 6 months or 5,000km based
loose.
on the vehicle model, and the users are requested to
4. Check the insulation, ground wire, and low voltage
supervise the operation of the service station. The specific
connectors of the electric drive axle motor and MCU are
maintenance contents and technical requirements are as
normal.
follows:
5. Check the fastening bolts of the electric drive axle reducer,
Vehicle Inspection
controller, motor and other axle parts for looseness, the
1. Check according to the Windrose Service Manual.
filling and drain plugs for looseness and oil leakage, and
2. Check the date of sales and driving mileage of the vehicle
the wheel side and reducer for oil leakage.
are within the specified range.
6. Connect the diagnostic device to read and record the
High Voltage Battery System
operating parameters of the electric drive axle.
Motor Control System
1. Check the high voltage battery box and clean the box body
to ensure that there is no obvious dust and the connector is
1. Check the low voltage harness and connector terminals of
not blocked.
the controller are loose and whether they are properly
2. Check that the high voltage battery connecting wire
sealed.
connector is firmly connected, and the skin insulation layer
is not damaged.
2. Disconnect the high voltage and check whether the
4. Check the dryer, condenser, four-circuit protection valve,
insulation resistance, harness, and ground of the MCU are
and serpentine pipe for air leakage.
normal.
5. Read and record the operating parameters of the electric
3. Check the heat dissipation of the MCU is normal.
air compressor.
Battery Cooling System
4. Connect the diagnostic device to read and record the
operating parameters of the MCU.
1. Check the liquid level of the expanding tank for
PDU All-in-one System
abnormalities.
2. Turn on "Left Battery Compressor" and "Right Battery
1. Check the high voltage harnesses and aviation connectors
are firmly connected, and whether the fixing protection is in
Compressor" on the maintenance switch interface, read the
place.
data of battery and battery thermal management system,
and check whether the refrigeration function is normal.
2. Check the low voltage harness and connector are firmly
connected and fix the harness.
3. Check that the battery cooling system is filled up to
standard without leakage or missing.
3. Check the insulation resistance value is normal.
4. Check the battery cooling system, pipelines and control
4. Check the cooling water line and interface are leaking,
systems, connecting wires and connectors are firmly
bending, and whether the clamp is loose.
connected, whether the skin insulation layer is not
5. Check the ground cable is secure.
damaged, and check related pipelines for faults and
interferences.
Electro-hydraulic Steering System
5. Check the battery cooling water pump is working properly
1. Check the clearance of the steering tie rod ball joint and
and whether the coolant filter is clogged with impurities.
cotter pins and tighten the fixing bolts of each component.
Brake system
2. Check the electric steering pump is working properly, and
the connecting wire and connector should be firmly
1. Check the effectiveness of the parking brake system.
connected.
2. Check the free travel of brake pedal.
3. Check the steering wheel locking bolts and steering shaft
3. Check the brake pipeline, front and rear axle modules, and
locking bolts are tightened reliably.
electronic parking modules for air leakage.
4. Check the steering fluid level or change the steering fluid
4. Check the wear of the brake linings.
and clean the filter element.
5. Check the tightening of the brake system bolts.
5. Check and lubricate the steering tie rod ball joint.
6. Drain the air reservoir (replace the drying tank if a large
6. Check the steering free clearance is normal.
amount of water is detected in the air reservoir twice).
7. Check the oil pipe clamp is loose, and whether there is oil
Chassis System
leakage.
1. Check the airbag installation and tightening and check for
8. Read and record the operating parameters of the electric
wear.
power steering motor controller.
2. Check the suspension height and the airbag for air leakage.
Electric Air Compressor System
3. Check the shock absorber for oil leakage.
1. Check the air filter element of the electric air compressor
4. Check and fasten the bolts of the shock absorber fixing
and purge and clean the air filter element.
bracket and the shock absorber.
2. Check the high voltage harness is damaged or falsely
5. Check and fasten the bolts of the fastening limit block
connected, and tighten the screws of the fixing bracket of
the electric air compressor.
bracket.
6. Check and fasten the bolts of the X-shaped control arm,
3. Check the insulation resistance of the air compressor and
longitudinal thrust rod assembly, and thrust rod bracket.
the high voltage harness is normal.
7. Check and fasten the nuts of U-bolts.
Fifth Wheel System
8. Check and fasten the fixing bolts of height valve.
9. Check the brake air circuit for air leakage.
1. Check the fifth wheel for damage, bending, omission, or
cracks, etc.
10. Check the air reservoir for air leakage.
2. Check the fifth wheel is functioning properly.
11. Check the air pipe connected to the trailer for air leakage.
3. Check the mounting bolts that fix the fifth wheel.
12. Read and record the EBS\ECAS\EPB DTCs.
4. Check the wear of the fifth wheel wear ring, lock hook, fifth
Cab System
wheel panel and trailer traction pin, and replace it if the
1. Check the front cover opens properly and smoothly.
wear is out of tolerance in a timely manner.
2. Check the wipers, washers, rearview mirrors, window
5. Check the filling of the grease.
regulators, awning sunshade, front windshield shades, etc.
2.2.1.3 Regular Maintenance
are working properly.
The regular inspection should be completed at an authorized
3. Check the steering wheel, IVI, seat, etc. are working
maintenance service station based on the vehicle model, and
properly.
the users are requested to supervise the operation of the
4. Check the door can open and close normally.
service station. The specific maintenance contents and
technical requirements are as follows:
5. Check the left and right side wall trim panels, boarding
steps, fenders, etc. are loose.
Vehicle Inspection
Electrical System
1. Check according to the Windrose Service Manual.
1. Check the fastening of the battery power line and ground
2. Check the date of sales and driving mileage of the vehicle
wire.
are within the specified range.
2. Check the low voltage battery capacity.
High Voltage Battery System
3. Check the working condition of DC/DC and whether it can
1. Check the high voltage battery box and clean the box body
charge the low voltage battery normally.
to ensure that there is no obvious dust and the connector is
not blocked.
4. Check various lamps, indicators, instrument and IVI
systems are working properly.
2. Check that the high voltage battery connecting wire
connector is firmly connected, and the skin insulation layer
5. Read and record vehicle DTCs and operating data.
is not damaged.
6. Check the harness for scratches, interferences, open circuit
3. Check that the fixing bolts of the high voltage battery box
and short circuit, and the harness should be kept away from
are free of looseness and falling off, and the box body is not
the heat source.
deformed.
7. Check the connection of the harnesses and the connectors
4. The surface and inside of the charging socket/charging gun
of the electrical appliances.
are dry and free of dust and other foreign matters, and the
8. Check the fuses, relays, lamps, and other electrical
cover plate is sealed reliably.
components are working properly.
5. Check the terminals of the charging socket are yellow,
9. Check the self-test of the electronic control system is
blackened or ablated.
normal and whether the system is faulty.
6. Check the SOC of battery packs is abnormal and confirm
10. Check the modules are loose, and whether the connectors
the battery fault feedback.
and pole ares tightly fastened.
7. Check the maximum voltage, minimum voltage, average
A/C System
voltage, maximum differential voltage, maximum
temperature, minimum temperature, average temperature
1. Check the A/C system is working properly.
and maximum temperature difference of the high voltage
2. Blow the A/C filter element.
battery pack.
PDU All-in-one System
8. Carry out charging test on the vehicle in locked and
sleeping state. After the vehicle is powered off and fall into
1. Check the high voltage harnesses and aviation connectors
sleeping state, insert the charging gun into the charging
are firmly connected, and whether the fixing protection is in
port to wake up the vehicle and read the charging current
place.
and charging power on the charging pile.
2. Check the low voltage harness and connector are firmly
9. The SOC of high voltage battery should be calibrated once
connected and fix the harness.
per month; In case the vehicle has been parked for more
3. Check the insulation resistance value is normal.
than 3 weeks, SOC calibration should be performed at least
once.
4. Check the cooling water line and interface are leaking,
bending, and whether the clamp is loose.
10. High voltage battery calibration method: Use the high
voltage battery until its SOC becomes 20%–25%; Fully
5. Check the ground cable is secure.
charge the high voltage battery; Use the high voltage
Electro-hydraulic Steering System
battery until its SOC becomes 40%–60%.
1. Check the clearance of the steering tie rod ball joint and
Electric Drive Axle System
cotter pins and tighten the fixing bolts of each component.
1. Change the lubricating oil in electric drive axle.
2. Check the electric steering pump is working properly, and
2. Check the high voltage cables of the electric drive axle
the connecting wire and connector should be firmly
MCU, the low voltage harness of MCU and TCU and the
connected.
harness of sensors are firm, whether the harness is
3. Check the steering wheel locking bolts and steering shaft
damaged, and the fixing is protected in place.
locking bolts are tightened reliably.
3. Check the cooling water pipe and interface of the electric
4. Change the steering fluid level or the steering fluid and
drive axle are leaking, bending, and whether the clamp is
clean the filter element.
loose.
5. Check and lubricate the steering tie rod ball joint.
4. Check the insulation, ground wire, and low voltage
connectors of the electric drive axle motor and MCU are
6. Check the steering free clearance is normal.
normal.
7. Check the oil pipe clamp is loose, and whether there is oil
5. Check the fastening bolts of the electric drive axle reducer,
leakage.
controller, motor and other axle parts for looseness, the
8. Read and record the operating parameters of the electric
filling and drain plugs for looseness and oil leakage, and
power steering motor controller.
the wheel side and reducer for oil leakage.
Electric Air Compressor System
6. Connect the diagnostic device to read and record the
1. Replace the air filter element of the electric air compressor.
operating parameters of the electric drive axle.
Motor Control System
2. Check the high voltage harness is damaged or falsely
connected, and tighten the screws of the fixing bracket of
1. Check the low voltage harness and connector terminals of
the electric air compressor.
the controller are loose and whether they are properly
3. Check the insulation resistance of the air compressor and
sealed.
the high voltage harness is normal.
2. Disconnect the high voltage and check whether the
4. Check the dryer, condenser, four-circuit protection valve,
insulation resistance, harness, and ground of the MCU are
and serpentine pipe for air leakage.
normal.
5. Read and record the operating parameters of the electric
3. Check the heat dissipation of the MCU is normal.
air compressor.
4. Connect the diagnostic device to read and record the
Battery Cooling System
operating parameters of the MCU.
1. Check the liquid level of the expanding tank for
abnormalities.
2. Turn on "Left Battery Compressor" and "Right Battery
2. Check the wipers, washers, rearview mirrors, window
Compressor" on the maintenance switch interface, read the
regulators, awning sunshade, front windshield shades, etc.
data of battery and battery thermal management system,
are working properly.
and check whether the refrigeration function is normal.
3. Check the steering wheel, IVI, seat, etc. are working
3. Change the battery cooling system coolant.
properly.
4. Check the battery cooling system, pipelines and control
4. Check the door can open and close normally.
systems, connecting wires and connectors are firmly
5. Check the left and right side wall trim panels, boarding
connected, the skin insulation layer is not damaged, and
steps, fenders, etc. are loose.
check related pipelines for faults and interferences.
Electrical System
5. Check the battery cooling water pump is working properly
1. Check the fastening of the battery power line and ground
and the coolant filter is clogged with impurities.
wire.
Brake system
2. Check the low voltage battery capacity.
1. Check the effectiveness of the parking brake system.
3. Check the working condition of DC/DC and whether it can
2. Check the free travel of brake pedal.
charge the low voltage battery normally.
3. Check the brake pipeline, front and rear axle modules, and
4. Check various lamps, indicators, instrument and IVI
electronic parking modules for air leakage.
systems are working properly.
4. Replace the brake lining.
5. Read and record vehicle DTCs and operating data.
5. Check the tightening of the brake system bolts.
6. Check the harness for scratches, interferences, open circuit
and short circuit, and the harness should be kept away from
6. Drain the air reservoir (replace the drying tank if a large
amount of water is detected in the air reservoir twice).
the heat source.
Chassis System
7. Check the connection of the harnesses and the connectors
of the electrical appliances.
1. Check the airbag installation and tightening and check for
wear.
8. Check the fuses, relays, lamps, and other electrical
components are working properly.
2. Check the suspension height and the airbag for air leakage.
9. Check the self-test of the electronic control system is
3. Check the shock absorber for oil leakage.
normal and whether the system is faulty.
4. Check and fasten the bolts of the shock absorber fixing
10. Check the modules are loose, and whether the connectors
bracket and the shock absorber.
and pole ares tightly fastened.
5. Check and fasten the bolts of the fastening limit block
A/C System
bracket.
1. Check the A/C system is working properly.
6. Check and fasten the bolts of the X-shaped control arm,
longitudinal thrust rod assembly, and thrust rod bracket.
2. Replace the A/C filter element.
Fifth Wheel System
7. Check and fasten the nuts of U-bolts.
1. Check the fifth wheel for damage, bending, omission, or
8. Check and fasten the fixing bolts of height valve.
cracks, etc.
9. Check the brake air circuit for air leakage.
2. Check the fifth wheel is functioning properly.
10. Check the air reservoir for air leakage.
3. Check the mounting bolts that fix the fifth wheel.
11. Check the air pipe connected to the trailer for air leakage.
4. Check the wear of the fifth wheel wear ring, lock hook, fifth
12. Read and record the EBS\ECAS\EPB DTCs.
wheel panel and trailer traction pin, and replace it if the
Cab System
wear is out of tolerance in a timely manner.
1. Check the front cover opens properly and smoothly.
5. Change the grease.
2.2.2 Specifications
2.2.2.1 Fluid Capacity
Application
Specification
Capacity
GL-5 (75W/80), (HD-R05 Electric version) 17L (intermediate axle) + 15L (rear axle)
GL-5 (75W/80), (HD-R05 Electric version)
Final drive fluid (3 motor)
GL-5 (75W/80), (HD-R05 Electric version)
17L (intermediate axle) + 17L (rear axle)
Final drive fluid (4 motor)
Motor electronically controlled
Ethylene glycol antifreeze(Freezing
30L (reference value, add on request)
antifreeze (3 motor)
Point -45°C)
Motor electronically controlled
Ethylene glycol antifreeze(Freezing
35L (reference value, add on request)
antifreeze (four motors)
Point -45°C)
Ethylene glycol antifreeze(Freezing
Battery antifreeze (NCM lithium)
37L (reference value, add on request)
Point -45°C)
Ethylene glycol antifreeze(Freezing
Battery antifreeze (LFP)
27L (reference value, add on request)
Point -45°C)
Steering gear hydraulic oil
ATF3
4L
850g±50g
A/C Refrigerant
HFC-134a
caution
Fluorescent yellow, freezing point -45℃, electrical conductivity ≤100μS/cm.
All other performance indicators shall meet the requirements specified in the standard GB 29743.2 - 2025 Motor
vehicle coolant—Part 2: Electric vehicle coolant.
2.2.3 Maintenance Cycle
2.2.3.1 Maintenance Schedule
Normal Use of Vehicle
Regular Maintenance Schedule (Tractor)
caution
The maintenance items given in the maintenance schedule
are conducive to:
The maintenance interval or mileage given, whichever
– The delivery of goods under the restrictions indicated on
comes first in the regular maintenance schedule shall
the tire label attached to the edge of the driver door.
prevail.
– The driving on appropriate roads and under legal
warning！
operating restrictions.
The user should use special after-sales fluids and
accessories designated by the OEM. Otherwise, paid
services will be provided by OEM as to damages
caused by violating the rules.
Maintenance Interval
Every
Every
Every
Every
Mainte-
Every
Every
Every
Every
15,000k-
60000km/
80000km/
300000k-
nance Item
50000km/
60000km/
500000k-
40,000km
m/12
24
12
m/12
6 Months
6 Months
Months
Months
Months
Months
●
Dryer
Air filter
●
element
Steering fluid
●
reservoir filter
element
Power
●
steering fluid
●
Gear oil
A/C filter
●
element
●
Coolant
Electric drive
●
axle final
drive
2.2.4 Quality Warranty Statement
2.2.4.1 Quality Warranty Statement
Windrose will warrant to the ultimate purchaser and each
subsequent purchaser that the new vehicle, including all parts
of its emission control system, meets three conditions:
1.It is designed, built, and equipped so it conforms at the time
of sale to the ultimate purchaser with the requirements of
40CFR Part 1037.120 as well as with all applicable
regulations adopted by the California Air Resourcers Board
pursuant to its authority in chapters 1 and 2, Part 5, division
26 of the Health and Safety Code.
2.It is free from defects in materials and workmanship that
could cause the vehicle to fail to conform to the regulated
requirements or could cause failure of a warranted part during
the applicable warranty period.
3.The powertrain is identical in all material respects to the
zero-emission powertrain as described in the related
powertrain application for certification.
Additional items:
– For emissions-related warranty (5 years or 100,000
miles) under “powertrain” list main components that need to
be covered – motor, inverter, HV battery charging system,
batteries and thermal management.
– The emission-related warranty covers all components
whose failure would increase a vehicle's emissions of air
conditioning refrigerants.
– Windrose warrants that its vehicles are (1) designed, built
and equipped with tires that conform, at the time of sale, with
requirements of vehicle manufacturers whose vehicles are
designed to meet applicable 2014 and later, U.S.
Environmental Protection Agency and National Highway
Traffic and Safety Administration greenhouse gas and fuel
efficiency standards, and (2) those tires are free from defects
in material and workmanship which cause the vehicle to fail
to conform with the vehicle manufacturer’s requirements for
a period of 2 years or 24,000 miles, whichever occurs first.