Aprilia scooter (manual)

Aprilia scooter (manual) - part 2

TECHNICAL DATA

DIMENSIONS
Max. length	2100 mm
Max. width (rear-view mirrors included)	900 mm
Seat height	790 mm
Max. height (front part of the fairing included)	1400 mm
Min. ground clearance	190 mm
Unladen weight (in the direction of travel)	160 kg
Wheel base	1470 mm
ENGINE
Make	Piaggio Leader 125 4T 4V water-cooled
Make (200)	Piaggio Leader 200 4T 4V water-cooled
Type	Single-cylinder, four-stroke with four valves, wet forced lubrication, overhead camshaft.
Number of cylinders	1
Total displacement	124 cu. cm
Total displacement (200)	197.75 cu. cm
Bore/stroke	57 mm /48.6 mm
Bore/stroke (200)	72 mm /48.6 mm
Intake valve clearance	0.10
Exhaust valve clearance	0.15
Compression ratio	12.5 ± 0.5: 1
Compression ratio (200)	11.5 ± 0.5: 1
Starting	Electric
Engine idling rpm	1750 ± 100 rpm
Clutch	Centrifugal type
Gearbox	Automatic
Cooling system	Liquid-type (50% water + 50% coolant), with forced circulation
CAPACITY
Fuel (with reserve)	10.5 liters
Fuel reserve	1.5 liters
Engine oil
- changing engine oil only	1000 cu. cm
- changing engine oil and engine oil filter	1100 cu. cm
- changing for engine overhaul	1150 cu. cm
Transmission oil	250 cu. cm
Coolant	1.2 liters
Seats	2
Vehicle max. load (rider + passenger + luggage)	210 kg
TRANSMISSION
Variator	Continuous automatic
Primary	With V-belt
Secondary	Gear-type
Engine/wheel total ratio (125)
- short	1:28.03
- long	1:8.41
Total wheel/engine ratio (200)
- short	1:21.05
- long	1:7.37
CARBURETOR
Model (125)	WVF 7C* ø29 WALBRO
Model (200)	CVK 7C* 30 KEIHIN
Model (200)	WVF 7D* ø29 WALBRO
FUEL SUPPLY
Type	Vacuum pump
Fuel	Premium-grade petrol, min. O.N. 95 (N.O.R.M.) and 85 (N.O.M.M.)
FRAME
Type	Single-beam with twin overlapped cradle
Steering inclination angle	27°
Trail	104 mm

SUSPENSIONS
Front	telescopic fork with hydraulic operation
Stroke	110 mm
Rear	n. 1 Hydraulic monoshock
Stroke	105 mm
BRAKES
Front	Hydraulic disc brake -  240 mm
Rear	Hydraulic disc brake -  190 mm (combined with front brake)
WHEELS
Rims
Front	E – 13 x 3.00 DOT - D
Rear	E – 13 x 3.50 DOT - D
TYRES
Front	110/90 – 13" 56P
Rear	130/70 – 13" 63P
STANDARD INFLATING PRESSURE
Front	210 kPa
Rear	220 kPa
INFLATING PRESSURE WITH PASSENGER
Front	220 kPa
Rear	240 kPa
STARTING
Type	Magneti Marelli capacity-discharge type with variable advance
Ignition advance	15° ± 1 – 2000 rpm 10° ± 1 – 2000 rpm
Ignition advance (200)	34° ± 1 – 6000 rpm 32° ± 1 – 6500 rpm
Standard spark plug	NGKCR8EB
Spark plug gap	0.7 0.8 mm
ELECTRIC SYSTEM
Battery	12 V – 12 Ah
Fuses	20 – 15 – 7.5 A
Generator (with permanent magnet)	12 V – 180 W
BULBS
Low beam	12 V – 55 W
High beam (F)	12 V – 55 W
Parking light	12 V – 16 W
Direction indicators	12 V – 10 W
Tail lights/Number plate light/ Stop light	12 V – 5 W / 21 W
WARNING LIGHTS
Instrument panel lights	12 V – 1.2 W
Direction indicators	12 V – 1.2 W
Engine oil pressure	12 V – 1.2 W
Low beam	12 V – 1.2 W
High beam	12 V – 1.2 W
Fuel reserve	12 V – 1.2 W

DECALS INSTRUCTIONS

Should some frame parts be removed:

NOTE

Plastic and painted parts shall be handled

with care. Do not score or damage them. Operate with care.

Do not damage keys and/or keyways.

When sticking decals, carefully follow the instructions listed below.

Recommended tools:

- Medium-strength spatule (1);

NOTE Soft spatules, such as those used on windshield wipers, do not usually sufficiently remove the water under the decal.

sponge or sprayer (2) with water.

NOTE Add some detergent (1-3%) to water and then shake it to produce foam bubbles.

To apply decals, proceed as follows:
Position the decal (3) in upside-down position on the work bench.
Keep the decal flat and pressed on the work bench and remove the protective film (4) completely.

NOTE The use of a sprayer (2) is recommended.

In case you are using a sponge, apply it on the surface without exerting any pressure in order not to damage the adhesive.
Wet the adhesive surface with suds.
Apply the decal (3) on the surface you wish to decorate and position it correctly.

NOTE Press the spatule with constant movements, working from the center towards the edge of the decal.
Apply a moderate pressure on the decal surface with the spatule (1) until all the excess soap and water under the decal itself have been completely removed.

NOTE Do not lift the decal corners and/or edges.
Using a cloth and working from inwards to outwards, dry the decal.
Use again the spatule. Press evenly as much as possible. Always work starting from the center to the outside and take special care to the corners and edges in order to ensure an even adhesion on the whole surface.

NOTE If present, remove the application tape (5) 20 to 30 minutes after applying the decal.
Remove the application tape (5) from the decal surface.
To ensure a good adhesion, use the spatule again by taking special care to the corners and edges.

NOTE When using the wet method, the decal final adhesion level will be reached around 48 hours after the application.
After having removed the application tape, make sure that no blisters are present on the surface.

Should some blisters be present, proceed as follows:
Using a pin or a cutter (6) cut the blister (7).

Use the spatule (1) starting from the side opposite to the cut and press the blister to make the air come out.

The application tape is used to make the makes and letters application easier, namely to position them correctly on the surface you wish to decorate and to reinforce the adhesive during application.

PRODUCTS

LUBRICANT CHART

LUBRICANT	PRODUCT
Engine oil	RECOMMENDED: SUPERBIKE 4, SAE 5W – 40 or 4T FORMULA RACING, SAE 5W - 40. As an alternative to the recommended oils, it is possible to use select oils having properties in compliance with or even above A.P.I. SJ specifications.
Transmission oil	RECOMMENDED: F.C., SAE 75W 90 or GEAR SYNTH, SAE 75W - 90. As an alternative to the recommended oil, use select oils having properties in compliance with or even above A.P.I. GL3 specifications
Fork oil	RECOMMENDED: F.A. 5W or F.A. 20W, as an alternative FORK 5W or FORK 20W. Should you wish to reach an average behavior between those offered by F.A. 5W and by F.A. 20W or FORK 5W and by FORK 20W, mix the products as follows: SAE 10W = F.A. 5W 67% of the volume, + F.A. 20W 33% of the volume. FORK 5W 67% of the volume + FORK 20W 33% of the volume. SAE 15W = F.A. 5W 33% of the volume, + F.A. 20W 67% of the volume. FORK 5W 33% of the volume + FORK 20W 67% of the volume.
Bearings and other lubrication points	RECOMMENDED: BIMOL GREASE 481 + GREASE SM2. As an alternative to the recommended product, use select oil for rolling bearings, useful temperature range -30°C…+140°C, dripping point 150°C…230°C, highly anticorrosive, water and oxidization resistant.
Battery terminals	Neutral grease or vaseline.
Brake fluid	The braking system is filled with Autofluid FR. DOT 4 (DOT 5 can be used as well) + BRAKE 5.1 DOT 4 (DOT 5 compatible). NOTE Before mixing different makes or types of oil, check their compatibility. As an alternative to the recommended fluid, use fluids having properties in compliance with or even above SAE J1703, NHTSA 116 DOT 4, ISO 4925 specifications.
Engine coolant	RECOMMENDED: ECOBLU – 40° C + COOL. As an alternative to the recommended fluid, use fluids having properties in compliance or even above basic ethylene glicol CUNA NC 956-16 specifications.

USE OF PRODUCTS

For all maintenance operations, use the product listed below only.

The listed materials have been tested for many years and are suitable for all the applications specified by the manufacturer.

NOTE Consumer goods with part numbers are available upon request (see table)

PRODUCT SPECIFICATIONS

Description	Use
Molykote 111 / N. ROTAX 897 161
LOCTITE ANTI-SEIZE 76710 N. ROTAX 297 431
Lubricate	- All ball bearings, sintered discs, gears, cylinder walls, if not otherwise specified.
Grease	- Oil seals lips, if not otherwise specified.
Gearbox oil	- Engine oil SAE 30, 0.6 l
Engine oil	- Premium 2-stroke engine oil
LOCTITE 221 / N. ROTAX 899 785
LOCTITE 648 / N. ROTAX 899 788
Silastic 732 RTV / N. ROTAX 297386

Clearance between the two oil seals of the coolant pump.
Starting driving gears.

Crankshaft ball-bearing housings.
Countershaft ball-bearing housings.
Gearshafts ball-bearing housings.

Countershaft bearing locking washer retaining oval- headed screw. Starter pedal gear washer retaining oval-headed screw (RX only).
Coupling gear stopper retaining socket head screw.
Electric starting device retaining socket head screws.
Oil pump retaining socket head screws.
All “Taptite” screws for casing and clutch cover reassembly.

Flywheel-to-crankshaft fixing hexagon nut.
Water tube into casing.
Electric starting device hole cover into casing (RX only)

Neutral indicator contact screw.
Ignition cable seal.

TIGHTENING
1. GENERAL TIGHTENING TORQUE SETTINGS

The table shows the tightening toque settings for 8.8 class screws made of steel/aluminum or other similar materials.

Screw or bolt thread	Wrench	Tightening torque
Screw or bolt thread	Wrench	Nm	kgm
M 4	7	3	0.3
M 5	8	6	0.6
M 6	10	10	1.0
M 8	12	25	2.5
M 10	14	50	5.0
M 12	17	80	8.0
M 14	19	135	13.5
M 16	22	210	21.0

For special couplings on this vehicle, refer to 2.3.2.

If not otherwise specified, the tightening torque settings refer to clean, dry and ambient temperature threads.

NOTE In order to avoid any possible deformation and/or wrong coupling, please tighten screws and bolts as follows:

Tighten all fasteners by hand.
Apply half of the recommended tightening torque value and tighten the opposite parts: (A) and (B); (C) and (D).
Repeat the above operation by tightening to the specified torque value.

NOTE The pressure on the fastening parts will be thus evenly distributed on the coupling surface.

ROUTINE MAINTENANCE 2

SUMMARY

ROUTINE MAINTENANCE 3
1. INTRODUCTION 3
2. ROUTINE MAINTENANCE TABLE 4
POINTS TO BE LUBRICATED 5
1. POINTS TO BE LUBRICATED 5
TIGHTENING 6
1. NUT, BOLT, SCREW TIGHTENING 6
2. FASTENING ELEMENTS 7
BATTERY 9
1. BATTERY 9
2. CHECKING AND CLEANING THE TERMINALS 10
3. CHECKING THE BATTERY ELECTROLYTE LEVEL 11
4. RECHARGING THE BATTERY 12
5. LONG INACTIVITY OF THE BATTERY 13
ELECTRICAL PARTS 14
1. ELECTRICAL PARTS 14
SPARK PLUGS 15
1. SPARK PLUGS 15
AIR CLEANER 17
1. AIR CLEANER 17
TUBES 18
1. TUBES 18
COOLANT 19
1. CHECKING AND TOPPING UP THE COOLANT LEVEL 19
2. CLEANING THE RADIATOR. 20
BRAKE FLUID 21
1. CHECKING AND TOPPING UP THE BRAKE FLUID 21
2. CHANGING THE BRAKE FLUID 23
3. CHECKING THE BRAKE PAD WEAR 24
4. BLEEDING THE BRAKING SYSTEMS 25
ENGINE OIL 28
1. CHECKING THE ENGINE OIL LEVEL AND TOPPING UP 28
2. CHANGING THE ENGINE OIL AND THE OIL FILTER 29
TRANSMISSION OIL 30
1. CHECKING AND TOPPING UP THE TRANSMISSION OIL 30
2. CHANGING THE TRANSMISSION OIL 31
THROTTLE 32
1. THROTTLE 32
2. IDLING ADJUSTMENT 34
FRONT END 35
1. STEERING 35
2. FRONT SUSPENSION 36
REAR AXLE 37
1. CHECKING THE ENGINE AXLE 37
2. REAR SUSPENSION INSPECTION 38
WHEELS 39
1. WHEELS 39
TYRES 40
1. TYRES 40
EXHAUST SYSTEM 41
1. EXHAUST MANIFOLD NUTS 41

ROUTINE MAINTENANCE

INTRODUCTION

To keep your vehicle in top performance conditions, aprilia strongly recommends to respect the routine maintenance schedule for the different parts of the vehicle.

This section describes the routine maintenance operations for vehicle main components.

DANGER

Before beginning any service operations or inspection of the vehicle, switch off the engine and remove

the key, wait until the engine and the exhaust system have cooled down and, if possible, lift the vehicle with the proper equipment onto firm and flat ground. Keep away from the red-hot parts of the engine and of the exhaust system, in order to avoid burns. Do not hold any mechanical piece or other parts of the vehicle with your mouth: the components are not edible and some of them are harmful or even toxic. If not expressly indicated otherwise, for the reassembly of the units repeat the disassembly operations in reverse order.

ROUTINE MAINTENANCE TABLE

Parts		After running-in [1000 km (621 mi)]		Every 6000 km (3728 mi) or 8 months		Every 12000 km (7456 mi) or 16 months
	Rear shock absorbers		1		1		-
	Battery –Electrolyte level		1		1		-
	Spark plug		1		1		3
	Carburetor – Idling speed		4		-		1
Drive chain – Variator rollers – Variator plastic slides		-		1		3
Variator belt 125-200		-		3		-
Steering bearings		1		1		-
Wheel bearings		-		1		-
	Air cleaner		-		2		-
	Engine oil filter		3		3		-
Variator filter		-		2		-
	Throttle control operation		1		1		-
	Brake locking operation		1		1		-
Clutch jaws		-		-		1
	Variator grease		-		3		-
	Stop light switch		-		1		-
Brake fluid		1		1		1 every two years: 3
Coolant		1			Every 2000 km (1243 mi): 1 – Every sixteen months: 3
Engine oil		3			Every 3000 km (1864 mi): 1 – Every 6000 km (3728 mi): 3
Front suspension oil		1		1		3
Transmission oil		3			Every 6000 km (3728 mi): 1 – Every 24000 km (14913 mi): 3
	Headlamp aim and operation		-		1	-
	Tyres – Inflating pressure		every month: 1
Engine oil filter mesh and magnetic screw		1		1		-
Variator rollers and plastic slides 125-200		-		1		3
Wheels - Tyres		-		1		-
Nut, bolt, screw tightening		1		1		-
Head nuts tightening		1		-		-
Front suspension		1		1		-
Brake fluid bleeding		1		-		-
Fuel line		-		1		Every two years: 3
Brake pads wear		1		Every 2000 km (1243 mi): 1
Fuel filter		-		1		3
Cooler cleaning		-		2		-

1 = check and clean, adjust, lubricate or change, if necessary; 2 = clean; 3 = change; 4 = adjust.

Perform the maintenance operations more often if the vehicle is used in rainy or dusty areas, on uneven surfaces or on racetracks.

( ) = OPERATIONS TO BE MADE ALSO BY THE USER

(**) = Check every fifteen days or at the recommended intervals.

POINTS TO BE LUBRICATED
1. POINTS TO BE LUBRICATED

A good lubrication ensures vehicle smooth operation and durability.

NOTE Before lubrication, clean all parts from any rust deposits, grease, dirt or dust.

The points to be lubricated are specified in the “LUBRICATING CHART”.

LUBRICATING CHART

Steering bearings
Rear wheel shaft and bearing
Center stand spindle
Side stand spindle
Front wheel shaft and bearings

= Grease

= Oil

TIGHTENING

NUT, BOLT, SCREW TIGHTENING

Check all fastening parts with accuracy. Mainly check all safety-related components and, in particular:
- Handlebar-to-upper plate fastener;
- Front brake control lever;
- Clutch control lever;
- Fuel delivery line;
- Plate-to-front fork fastener;
- Front wheel shaft fork clamps;
- Front wheel;
- Front brake line couplings;
- Front brake disc;
- Front brake calliper;
- Engine;
- Sprocket;
- Rear brake control lever;
- Rear swingarm;
- Rear swingarm levers;
- Rear shock absorber;
- Rear wheel;
- Rear brake disc;
- Rear brake calliper;
- Rear brake line couplings.
  
  WARNING
  
  The fastening elements shall be tightened to
  
  the specified torque value. Apply LOCTITE ONLY where indicated, see 2.3.2.
  
  Lubricate only the parts specified in the table
  
  2.3.2.

FASTENING ELEMENTS

Check and, if necessary, tighten after the first 1000 km (621 mi) and after every 6000 km (3728 mi) or 8 months.

WARNING

The fastening elements specified in the table must be tightened to the specified torque value using a

torque wrench and, where recommended, applying LOCTITE ®. The highlighted parts () are safety components.

Notes:

L243 = tighten with Loctite® 243 Lub = lubricate

FRAME
Description	Q.ty	Screw/Nut	Nm	Kgm	Notes
Splitter-to-frame fitting		M6	10	1.0
Arc-to-frame fixing		M6	12	1.2
Locking ring nut	3	M25x1.5	45	4.5
Key-operated switch retaining tear screw	1	M6x25	Tearing	Tearing
Key-operated switch fastening screw	4	M6x25	8.5	0.85
STAND
Description	Q.ty	Screw/Nut	Nm	Kgm	Notes
Centre stand-to-engine fastener	1	M10	27	2.7
Side stand-to-frame fastener		M10	20	2.0
CONNECTING RODS
Description	Q.ty	Screw/Nut	Nm	Kgm	Notes
Con-rod-to frame fixing		M12 pin	60	6.0
Con-rod-to-engine fixing		M10 pin	40	4.0
Con-rod/con-rod fixing		M12 pin	60	6.0
Silencer fixing		M8	25	2.5
REAR SUSPENSION
Description	Q.ty	Screw/Nut	Nm	Kgm	Notes
Rear shock absorber-to- frame fastener		M10	50	5.0
Rear shock absorber-to- engine fastener		M10	50	5.0
Rear shock absorber-to-frame fasteners		M8x50	25	2.5
FILTER BOX
Description	Q.ty	Screw/Nut	Nm	Kgm	Notes
Filter box-to-engine fastener	1	M6x45	8	0.8
Filter box-to-engine fastener	1	M6x55	8	0.8
EXHAUST SYSTEM
Description	Q.ty	Screw/Nut	Nm	Kgm	Notes
Manifold-to-head fixing	2	M7 nut	17	1.7
Plate-silencer fixing	3	M8x40	25	2.5
Manifold clamp fixing	1		10	1.0
Muffler mount fixing	2	M8x40	25	2.5
FRONT WHEEL
Description	Q.ty	Screw/Nut	Nm	Kgm	Notes
Wheel shaft	1	M12	40	4.0
Safety screw		M6	12	1.2
REAR WHEEL
Description	Q.ty	Screw/Nut	Nm	Kgm	Notes
Wheel nut		M16x1.5	110	11.0

FRONT AND REAR BRAKES
Description	Q.ty	Screw/Nut	Nm	Kgm	Notes
Front calliper fixing	1	M8x40	25	2.5
Front calliper fixing	1	M8x45	25	2.5
Rear calliper fixing	2	M8x40	25	2.5
Rear brake cable retainer	1	M6x20	12	1.2
Front calliper fixing	2	M6x35	12	1.2
HANDLEBARS AND CONTROLS
Description	Q.ty	Screw/Nut	Nm	Kgm	Notes
Clamp closing screw	1	M10	45	4.5
Safety screw	1	M8	20	2.0
FRONT BODY
Description	Q.ty	Screw/Nut	Nm	Kgm	Notes
Mudguard-to-fork fixing		M5 collar	0.7	0.07
Mirrors-to-arc fixing		M6x30	10	1.0
CENTRAL BODY
Description	Q.ty	Screw/Nut	Nm	Kgm	Notes
Self-tapping screw		4.2	0.3	0.03
Screw with collar		M5
REAR BODY
Description	Q.ty	Screw/Nut	Nm	Kgm	Notes
Handgrip-to-frame fixing	2	M8x60	24	2.4
Handgrip-to-frame fixing	2	M6x40	10	1.0

BATTERY
1. BATTERY Carefully read 1.2.1.
  
  Two different types of battery are available on the market:
  - battery needing to be maintained with plugs;
  - maintenance-free battery without plugs needing no electrolyte level check and topping up.
    
    After the first 1000 km (621 mi) and then every 6000 km (3728 mi) or 8 months, check the electrolyte level and the terminals correct tightening.
    
    DANGER
    
    The battery electrolyte is a toxic, caustic
    
    substance containing sulphuric acid and thus able to cause severe burns in case of contact. Always wear protective clothes, a mask and/or eye protectors when handling this fluid.
    
    If the electrolyte gets in contact with the skin, carefully wash the parts of your body that get in contact with the fluid with abundant fresh water.
    
    In the event of contact with your eyes, carefully wash them with water for fifteen minutes and then consult immediately an eye specialist.
    
    Should you accidentally drink some fluid, drink abundant water or milk, then drink magnesia milk or vegetable oil and consult immediately a doctor.
    
    Battery releases explosive gases.
    
    Keep flames, sparks, cigarettes and any other heat source away from the battery.
    
    During recharging or use, make sure that the room is properly ventilated and avoid inhaling the gases released during recharging.
    
    KEEP AWAY FROM CHILDREN.
    
    Take care not to lean the vehicle to avoid dangerous spills of the battery fluid.
    
    WARNING
    
    Never reverse connection of the battery cables.
    
    Connect and disconnect the battery with the ignition switch in position “”.
    
    Connect first the positive cable (+) and then the negative cable (-).
    
    Disconnect following the reverse order.
2. CHECKING AND CLEANING THE TERMINALS
  
  Carefully read 2.4.1.
  - Make sure that the ignition switch is in position "".
  - Raise the seat.
  - Undo and remove the two screws (1).
  - Remove battery protection.
  - Make sure that the cable terminals (2) and the battery terminals (3):
    - in good conditions (and not corroded or covered with deposits);
    - covered with neutral grease or vaseline. If necessary, proceed as follows:
  - Disconnect the negative cable (-) first and the positive one (+).
  - Brush the wire with a wire brush, in order to eliminate any trace of corrosion.
  - Reconnect the positive terminal (+) first and then the negative one (-).
  - Cover the terminals of the cables and of the battery with neutral grease or vaseline.
3. CHECKING THE BATTERY ELECTROLYTE LEVEL
  
  Carefully read 2.4.1.
  
  To check battery electrolyte level, proceed as follows:
  - Raise the vehicle on center stand.
  - Raise the seat.
  - Undo and remove the two screws (1).
  - Remove battery protection.
  - Make sure that the fluid level is included between the
    
    “MIN” and “MAX” marks, etched on the battery side.
    
    If this is not the case:
  - Remove the battery, see 7.2.1.
  - Remove battery plugs.
    
    WARNING
    
    Top up the electrolyte using distilled water
    
    only. Do not fill above the “MAX” mark as the level increases during recharging.
  - Top up with distilled water.
4. RECHARGING THE BATTERY Carefully read 2.4.1.
  
  NOTE If the battery is almost fully flat, when the starting button "" is pressed, the starting relay will issue a vibrating noise.
  
  Do not remove the battery plugs: without plugs the battery may be damaged.
  - Remove the battery, see 7.2.1.
  - Remove plugs.
  - Check the battery electrolyte level, see 2.4.3.
  - Connect the battery with a battery charger.
  - Recharge the battery with 1/10th of its amperage.
  - Once finished, check the electrolyte level once again and, if necessary, top up using distilled water.
  - Refit battery plugs.
    
    WARNING
    
    Reassemble the battery only 5 to 10 minutes
    
    after disconnecting the recharge apparatus, since the battery continues to produce gas for a short lapse of time.
5. LONG INACTIVITY OF THE BATTERY Carefully read 2.4.1.

WARNING

If the vehicle remains unused for more than

twenty days, disconnect the 20A fuses.

The removal of the 20A fuses requires the setting to zero of the following functions: digital clock and red line setting.

To reset these functions.

If the vehicle remains unused for more than fifteen days, it is necessary to recharge the battery, in order to prevent its sulphation, see 2.4.4.
Remove the battery, see 7.2.1., and put it in a cool and dry place.
It is important to check the charge periodically (about once a month), during the winter or when the vehicle remains unused, in order to prevent the deterioration of the battery.
Recharge it completely with a normal charge, see

2.4.4.

NOTE If the battery remains on the vehicle, disconnect the cables from the terminals.

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