GRACE EASY Manual English GRACE EASY Manual Page | 67
Table of contents I. 1. Explanations of symbols .......................................................................................... 71 Your GRACE EASY ......................................................................................................72 1.1. About this operating manual ................................................................................... 73 1.2. Scope of supply ........................................................................................................
4.6. Select the generator level ........................................................................................ 93 4.7. Change display ......................................................................................................... 94 4.8. Check the charge status of the battery ................................................................... 94 4.9. Set the time ............................................................................................................. 95 4.10.
9.3. Brake pads ............................................................................................................. 121 9.4. Belt (EASY, Red Dot)............................................................................................... 121 9.5. Sprockets (EASY, Red Dot) ..................................................................................... 121 9.6. Chain (EASY 1x10) .................................................................................................. 122 9.7.
I. Explanations of symbols To begin with, we would like to acquaint you with the meaning of the attention and hazard symbols which you can find in these operating instructions. It is very important that you follow the information by the symbols. Caution! This caution symbol points out a potentially hazardous situation through which persons in the environment may sustain injury, or the product or objects may be damaged.
1. Your GRACE EASY The GRACE EASY is a member of the class of electric power-assisted motorcycles, also known as EPAC's. The motor only provides assistance when you apply force to the pedals. The force applied by the rider is measured in terms of speed, pedalling frequency, and torque through which the motorised assistance is adjusted. The maximum assisted speed is 25 km/h (15.5 mph) or 32 km/h (20 mph) in the USA as a Pedelec, or 41 km/h (25.5 mph) as an S-Pedelec.
1.1. About this operating manual This operating manual is solely for the GRACE EASY range in the Pedelec- and S-Pedelec variants and frame sizes M and L. Follow the instructions and warnings for your own safety. Failing to do so may damage the bike and/or lead to personal injury. For maintenance work and repairs, please talk directly to your dealer.
1.3. Description of equipment on the GRACE EASY 1. Saddle 3. Battery lock 5. Twist shifter 7. Front wheel 9. Hydraulic disc brake 11. Double kick stand 13. Rear wheel 15. Mudguard* 17. Saddle post 18. Rear light 2. Battery 4. Stem 6. Headlight 8. Fork/spring fork* 10. Crank and pedal 12. Carbon belt / Chain 14. Motor 16. Luggage rack* 19.
1.4. Anti-manipulation-plate The anti-manipulation-plate is located on the down tube under the battery. To see it, the battery must be removed.. 1.5.
Please install the following components, it is essential to fulfill the requirements of the german StVZO: Reflectors, 2 pieces (S-Pedelec) Rear-view mirror (S-Pedelec) Pedal reflector 2 pairs (Pedelec, S-Pedelec) A helmet must be worn at all times when riding the S-Pedelecs, and the bike must have an insurance plate. You must have an M-category driver's licence and must carry your licence with you at all times.
2. First time use 2.1. Removing/inserting the battery Removing the battery: Using the key, unlock the lock on the battery so that the lock cylinder comes out. Slide the battery along the down tube towards the handlebars. Lift up the rear of the battery and carefully remove it by moving it at a diagonal towards the rear. Inserting the battery: Set the battery down onto the down tube. Slide the battery along the down tube towards the bottom bracket.
2.2. Charging the battery The battery is charged at high voltage. If the mains cable or socket is damaged, wet or dirty, you may get an electric shock from it. Danger of death! Only use the supplied battery charger. Do not use the battery charger when wet. Do not use the mains cable or charger if damaged. Replace damaged mains cable or charger immediately. Before connecting the charger cable, remove any foreign matter from the charging socket, e.g. dirt, ice or snow.
Fully discharging the battery can lead to an internal short circuit. The battery will heat up considerably. Fire hazard! Avoid fully discharging the battery both during operation and storage. Do not ride the bike with a fully discharged battery. Do not expose the battery to temperatures beyond the permissible storage temperatures of -10°C (14°F) to 45°C (113°F).
Connect the plug on the charging cable to the socket on the battery. Next, connect the charger to the mains with the mains plug. The LED ring on the battery socket briefly lights up red before switching to orange. When properly connected, an acoustic signal will sound. The battery is charging. After the battery has been fully charged, the charging will stop automatically. Disconnect the charger from the mains and the battery from the charger. The battery is switched off automatically.
The battery goes into protection mode when the GRACE EASY is not used for two months at a time or when the battery charge was used up and was not re-charged in the week that followed. The battery is inactive in protection mode. The only way to re-activate the battery is through a full charging cycle. When the battery is in protection mode, the lights do not work. Driving the bike without working lights may be prohibited in some countries. 2.3.
2.4. Adjusting the saddle position and -angle To change the angle and horizontal position of the saddle, undo the two hexagon sockets on the saddle clamp which are positioned immediately behind the saddle post above the rear wheel. You can now move the saddle forwards and backwards in the guide and adjust the angle. In the basic position, the saddle should be arranged horizontally. You may not be able to find the best position until after a long ride.
2.5. Adjusting the position of the brake lever Undo the screws on the handlebar clamp with a Torx T25 spanner to twist and move the brake levers on the handlebars. First tighten the top screw until the brake lever and clamp are adjacent to each other without a gap. Then tighten the bottom screw (see torque table). The brake levers are configured correctly when your fingers can reach the brake levers when your arms are outstretched. The wrist should be stretched out as much as possible. 2.6.
2.8. Rear-view mirror (S-Pedelec only) Fix the rear-view mirror to the left side of the handlebars with a hexagon socket SW4 (0.16 in) without play. In the image, the mirror attachment is shown for driving on the right-hand side. The mirror must be attached to the right hand side for driving on the left-hand side. 2.9. Insurance plate (S-Pedelec only) The insurance plate is fixed to the number plate holder beneath the saddle with two screws (M4x10) and two self-sealing nuts.
2.10. Mounting instruction Pedal reflectors for Schindelhauer-pedals Driving the vehicle without mounted pedal reflectors is not compliant with the Road Traffic Licensing Regulations. For this reason, the installation of the pedal reflectors is highly recommended.
Now place the components on the front of the pedals and push it from behind with the second mounting wedge. Then set the M4 nuts on the bolts. Please note that the inclination of the wedge is placed in a way, that the reflector is perpendicular to the pedal surface. Now tighten the screws using the above tool. Do not tight the screws firmly. You should be able to move the reflector Align the center of the reflector housing and tighten the screws permanently.
3. Before each ride 3.1. Checking the wheels and tyres Observe the tyre pressure information provided by the manufacturer which is printed on the tyre wall! Exceeding the maximum permissible air pressure when pumping up the tyres can cause the tyre to puncture! Valves which are not fitted straight can break off while riding. The tyres will rapidly lose pressure leading to unstable riding response. Risk of accident! Before each ride, check the valve fittings and adjust where necessary.
3.3. Checking the drive belt Inadequately secured sprockets and guides may dislodge during the ride. Incorrectly adjusted drive belts may drift out of the sprockets while riding the bike. Risk of accident and injury! Always follow all instructions concerning how to work with drive belts, especially when installing or removing the rear wheel. Extra care is needed to prevent damage to the drive belt. Before each ride, check 3.4.
Brake pads and discs wear due to friction. The more often you ride in a hilly environment or through rain or dirt, the higher the wear. The braking system on the GRACE EASY has a fully-automatic pad synchronisation system. This system balances the wear on the brake pads so that the pressure point of the brake is always constant. The wear condition of the brake pads can be checked with the transport securing mechanism.
4. Function description 4.1. BionX drive The drive system has three sensors (speed, pedal frequency and torque applied by the driver) in order to optimally support the current driving situation. The sensor for measuring the pedal power can lose its electronic adjustment. This can lead to a malfunction of the pedal power support. Keep magnets and large metallic objects away from the pedal bearings, such as hammers. 4.2.
2 3 4 5 1 6 12 7 11 1 2 3 4 5 6 7 8 9 10 11 12 10 9 8 - button: Switch the system on/off, switching lights on/off Display Bar indicator: Generator level Tachometer Bar indicator: Drive level - button: Increase values - button: Reduce values Display: Drive- (A) / generator level (G) Display: Bike mode Display: Battery charge status On-board computer: Trip mileage, overall mileage, ride time, average speed, motor temperature, and clock - button: Set the clock, scroll through/reset display GRACE
4.4. Switch the drive system on/off Briefly press on one of the two top buttons. Activation is acknowledged by the system with an acoustic signal. A self-test is conducted which ends with a count down on the tachometer. The drive system is activated as soon as you press down on the pedals. The level of assistance provided is based on the settings in the on-board computer.
Press the button to move up an assistance level. An “A” appears in the display. The bar display shows the selected assistance level. if you previously set a generator level, you will first need to reduce the generator level using the button. Press the button to reduce the assistance level.
Press the button to increase the generator level. A “G” appears in the display. The bar indicator shows the currently selected generator level. If you previously adjusted a drive level, you will first need to reduce the drive level with the button. Press the button to reduce the generator level.
Alternatively, the charge status of the battery can be shown on the LED ring of the charge socket. Slowly slide the finger across the charge socket and see the LED ring light up a particular colour. Colour of the LED ring Green Orange Red 4.9. Charge status 100 – 85 % 85 – 25 % < 25 % Set the time While the system is switched on, press the and button at the same time. CLOCK and the current time setting will be displayed and the hours indicator will flash. Use the - or the button to adjust the hours.
A precise lens system scatters light of a highperformance LED evenly on the road surface. This produces a high light intensity thus increasing safety. The headlamp range must be adjusted according to local national regulations. The adjacent figure shows the requirements as applicable for Germany for example. The headlight must be adjusted so that the light cone hits the ground after 10 m, or at distance of 5 m (16.4 ft) is only half as high as when it was emitted. On the GRACE EASY this is 40 cm (1.3 ft).
4.11. Belt drive The GRACE EASY is fitted with an innovative drive belt reinforced with carbon fibre. When installed properly, the Gates carbon drive is almost completely maintenance-free - it requires no lubrication or re-tightening. The carbon fibres in the belt can absorb high tensile forces but are sensitive to bending loads, notching, shear forces, and blows. Even if the carbon fibres of the belt are enclosed, you need to take very special care when handling the carbon drive.
4.12. Gear change A gearbox with 3 gears is fitted into the drive on the GRACE EASY. You switch gears using the shifter on the handlebars. You can see the gear you are currently in (in red) from the gear indicator on the shifter. The gear can be changed while the bike is stationary or in motion. It is easiest to change gears while riding when applying low pedal force. 4.13. The derailleur system Activate the derailleur by means of the grip shift on the right handlebar grip.
The rear wheel may lift off the ground when applying the front wheel brake strongly. This can cause you to go over the handlebars. Risk of accident! Always brake the bike by pressing the front and read wheel brake at the same time and when applying the brakes strongly, shift your centre of gravity towards the back of the bike. During braking, the electric motor acts as a generator (generator mode). The electrical energy thus produced is fed back into the battery.
The GRACE EASY comes with the following tyres as standard: CONTINENTAL EContact 28 X 1 3/8 X 1 5/8 equipment options reserved. The recommended operating pressure for these tyres is a max. 6 bar (max 85 psi). These tyres which are fitted as standard are directional. An arrow on the tyre wall indicates the direction of travel. Regularly check the tyre pressure (at least every 14 days). Note that warn tyres always have a higher tyre pressure than cold ones. The tyre inflation pressure changes by approx. 0.
4.17. Luggage rack (optional accessory) A loaded luggage rack changes the way the bike handles. It has a negative effect on the steering- and braking properties, in particular. The braking distance may increase. Risk of accident! Do not exceed the maximum load capacity of the luggage rack (see the information on the luggage rack). When transporting items, make sure that the rear light and reflectors on the tyre walls can be easily seen by other road users.
Stop using the bike if parts of the fork are bent or broken, oil is leaking, if there are noises which suggest an excessive bottoming or if there are other signs of a possible failure of the fork, such as e.g. a reduction in shock absorbance. In such cases, immediately take the bike to a specialist dealer for inspection and repair. If the fork has a fault, this can lead to damage to the bike or injury to the rider. If the bike with the dropouts (front wheel removed) is attached to a carrier, e.g.
5. Maintenance 5.1.
Removal EASY MJ 2013: Undo the axle bolt with a hexagon socket SW5 (0.2 in). EASY MJ 2014: Undo the axle clambing with a hexagon socket SW4. Afterwards undo the 15mm axel with a hexagon socket SW 8. Remove the front wheel from the fork and slide the transport safety between the brake pads. Installing Remove the transport safety from the brake pads and carefully position the front wheel into the dropouts of the fork. Make sure that the brake disc slides between the brake pads.
Removal Shift the gears into first gear and undo the shift cable from the rear wheel hub. To do so, press the locking mechanism on the plastic sleeve on the right dropout. Disconnect the plug connections for the data cable and power cable on the left dropout. Undo the axle nuts with a hexagon socket SW15 (0.59 in). You can now remove the rear wheel. Carefully remove the frame from the rear belt pulley and insert the transport safety between the break pads.
5.4. Adjusting the gears Using the shifter, shift into third gear. In third gear, the gear cable A on the right dropout should not be able to be pulled out from the wheel hub any further. If this is not the case, this means the shift cable is too slack. If you cannot shift into third gear, turn the nuts on the gear shifter inwards (clockwise) as the shift cable is too taught. You can also pull the shift cable “A” on the right dropout out of the plastic sleeve of the shift cable a little ways.
Undo the four hexagon sockets SW6 (0.24 in) right and left on the dropouts as well as the screw for the torque arm SW5 (0.2 in) above the left dropout. Tighten the belt by tightening the setting screw on the dropouts which can be moved horizontally, with a hexagon socket SW4 (0.16 in) with spherical head. You can use the open end spanner SW10 (0.39 in) to lock the setting screw via a nut. Press the belt in the middle between the front and rear pulley downwards on its upper side with a finger.
Wrong: The belt travels at an angle to the pulleys. Tightening the axial adjustment bolt to the dropouts on the drive side or loosening it on the opposite side guides the belt travel back in the direction of the side stop (flanged wheel) on the rear pulley. Correct: Both belt pulleys are aligned and the belt travels in a straight line. Turn the crank again and check the line of the beltadjust where necessary. Repeat this step until the line of the belt is correctly adjusted.
5.6. Adjusting the belt guide The belt guide prevents the drive belt jumping on the rear belt pulley or prevents it from being able to slip from the pulley. The gap “A” between the belt guide and the back of the belt should lie between 1 - 1.5 mm (0.04 - 0.06 in). To adjust the gap undo the screw with a hexagon socket SW5 (0.2 in) and move the belt guide in the elongated bore. Tighten the screw again with a hexagon socket SW5 (0.2 in) (see torque table). 5.7.
5.9. Assembling the pedals Apply a think layer of grease to the threads on the pedal axis and crank. First of all, screw the pedal loose by hand. Make sure the parts are positioned at the correct angle to each other and do not tilt. Move the crank into a horizontal position so that the pedal is facing the front wheel. Place the open end spanner SW15 (0,59 in) on the pedal axle and hold the crank firmly on the opposite side.
5.10. Checking the wear on the brake pads Brake discs, brake callipers, and quick-release clamps and axle nuts can become very hot after braking, especially on longer rides. Wait for these parts to cool down before touching them. In the assembled state: Pull the brake lever on the handlebars and insert the transport safety with the thick end between the lugs on the brake pad carrier. If the transport safety no longer fits between the lugs, this means the brake pads are worn and must be replaced.
5.11. Replacing the brake pads Never push the pistons back while the pads are disassembled as otherwise you may damage them. This description applies for replacing brake pads on the front and rear wheels. Remove the wheel as shown in the instructions. Move back the pistons in the brake calliper while the brake pads are installed with the transport safety or using a wide screwdriver. Do not apply heavy force.
Remove the brake pads upwards and out of the brake calliper. Insert the brake pads into the brake calliper one by one. The brake pads must point inwards towards the brake disc. They are held into position by magnets. The retaining screw on the brake pad is always fitted with a one-time action thread locking mechanism. If you use the screw more than once it may come undone while riding. This can cause the brakes to fail.
Turn the retaining screw on the brake pad into the brake calliper. Make sure that they pass through the "ears" of the brake pad carrier, tighten them (see torque table). Reassemble the wheel (see relevant instructions) Pull the brake lever several times until you feel a steady pressure point. Brake the new brake pads. 5.12. Checking the wear on the brake disc Measure the thickness of the brake discs with a slide gauge. The minimum thickness - 1.8 mm (0.07 in) - is printed on the brake discs.
Turn the brake disk on the wheel flange downwards counter to the direction of travel. Tighten the screws cross-ways (not all-round but opposite). The screws to secure the brake disk have a one-time action thread locking mechanism. If you use the screws more than once they may come undone while riding. This can cause the brakes to fail. Risk of accident! Always replace the retaining screws with new ones immediately after they have come undone. Dispose the used retaining screws immediately. 6.
In particular, take the following instructions into account when maintaining your GRACE EASY: Use as little water as possible and keep it away from electrical contacts. Clean the vehicle with a soft sponge or soft brush. Clean the battery carrier on the down tube with a damp cloth. Allow the electrical plug connections to dry before putting the bike back into operation. 8. Troubleshooting Problem The drive system does not switch on.
The charge level indicator on the display The battery is affected by the ambient unit does not display "full" after a complete temperatures so that the battery charge. becomes too hot while being charged. Allow the battery to cool down and repeat the charge procedure. Also observe the additional instructions on charging the battery. The charge level indicator on the display unit does not indicate the charge level reliably.
The drive system switches itself on after the battery has charged on the bike. The mains plug is disconnected from the socket but the battery charger is still connected to the battery. The system will switch itself on as a result. Always after charging, first unplug the plug on the charger from the battery and only then unplug the mains plug from the socket. Oily brake disks or -pads can increase the braking distance considerably. Risk of accident and injury. Do not ride with oily brake disks or -pads.
Squeaky brakes when braking. The brake calliper is not aligned up with the brake callipers exactly. Have a specialist workshop align up the brake calliper correctly. The spoke tension on a wheel is not sufficient. Have a specialist workshop increase the spoke tension. The wheel is not secured properly. Tighten the axle bolt on the front wheel or the axle nuts and screws on the dropouts on the rear wheel to the specified torque. Brake makes metallic noises and brakes very harshly.
The gears cannot shift into third gear. The shift cable is too slack. Increase the tension of the shift cable on the shifter. If the problem is not resolved with these measures, refer to a specialist dealer. 9. Wear parts Some parts and components on your GRACE EASY are subject to function-related wear. For this reason, such parts need to be monitored very closely and regularly maintained or replaced. The wear parts include: 9.1.
9.2. Handlebar grips Handlebar and grip surfaces are subject to function-related wear and may need to be replaced at regular intervals. The grips must always be firmly attached to the handlebars. 9.3. Brake pads The brake pads are subject to function-related wear which is heavily dependent on how the GRACE EASY is used. When riding along tracks with heavy drops or when using it for bike sports, it may be necessary to replace the brake pads at shorter intervals.
9.6. Chain (EASY 1x10) Due to its function, the chain is susceptible to wear, which is very dependent on care and maintenance and on how the GRACE EASY is used (mileage, dirt, salt and riding in the rain, etc.). The life span of the chain can be prolonged by regular cleaning and lubrication although it is necessary to replace it when the limit is reached. 9.7.
9.12. Frame paint and coating The coating on the parts of your GRACE EASY protects them from corrosion. Regularly check all paint surfaces for damage and touch up these surfaces right away. This also preserves the look of your bike. 10. Maintenance When you bought your GRACE EASY your dealer provided you with a service manual.
12. Technical data 12.1. Motor Continuous rated power, Pedelec EU Continuous rated power, Pedelec USA Continuous rated power, S-Pedelec Maximum torque, Pedelec Maximum torque S-Pedelec Maximum assisted speed Pedelec EU Maximum assisted speed Pedelec USA Maximum assisted speed, S-Pedelec Permissible operating temperature Permissible storage temperature 250 Watt 350 Watt 350 Watt 35 Nm (25.81 lb·ft) 40 Nm (29.5 lb·ft) 25 km/h (15.5 mph) 32 km/h (20 mph) 41 km/h (25.
12.4. Braking system Brake pads Front brake disk Rear brake disk Magura MT model range Disk diameter: 180mm (7.09 in) Disk diameter: 180mm (7.09 in) for BionX 12.5. Weights The vehicle weight is indicated for the standard scope of supply. Accessories and special equipment increase the unladen weight and reduce the useful load. Vehicle weight 24.5 kg Permissible total weight (bike with 120 kg (264 lbs) rider, accessories and luggage) 12.6.
12.7. Frame sizes GRACE EASY Size M GRACE EASY Size L Page | 126 A Top tube B Standover height C Inside leg measurement D Seat tube height 585 mm (23.03 in) 610mm (24.04 in) 850 mm (33.46 in) 860 mm (33.86 in) 710 mm (27.95 in) 760 mm (29.92 in) 490 mm (19.29 in) 540 mm (21.
12.8. Tightening torques If you tighten the nuts or bolts with the wrong torque, they may come undo if the torque is too low they may expand if the torque is too high causing them to break off Excessive torque can also damage the parts. Risk of accident! Always tighten the nuts and bolts to the prescribed torque. If you do not have a torque wrench, have the work carried out by a specialist workshop.
13. Warranty A statutory warranty period of two years has been in effect since 01/01/2002. The warranty period begins when you receive your GRACE EASY from your dealer, who is your contact person for all warranty issues. Please keep the invoice or till receipt in a safe place for the duration of the warranty period.
14. EC Declaration of Conformity Manufacturer´s name and address: MIFA AG, Kyselhäuser Straße 23, D-06526 Sangerhausen, Germany Product: EPAC/Pedelec (electric power assisted cycle) This declaration refers only to the Pedelec in the factory state in which it was marketed. Furthermore, subsequent mounted parts by the end-user and a subsequent done work on the bike is not accepted by MIFA. The declaration is not valid anymore if the product is modified without agreement.
