JR MB-331 Assembly Manual Download Page 3

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① The product has been delivered to you after strict inspection. After unpacking the kit, be sure to check its contents. If there are any faulty parts, 

contact the seller prior to assembling the product.

② For any pre-assembled item, be sure to check assembly of parts and tightness of bolts and nuts. If an abnormality is noted, please contact the seller.

③ For product faults and failures noticed before completion of assembly, we will replace the relevant parts with new ones only when we have determined 

them as a clear incipient failure.

④ Note that our product warranty does not cover any failures of parts which have resulted from your handling during assembly.

⑤  During  use  of  this  product,  wear,  deterioration,  service  life  of  parts,  and  the  performance  of  the  helicopter  depend  greatly  on  the  working 

environment at your site (assembly, adjustment, flight condition, storage), and the characteristics of the helicopter differ considerably depending on 
these  unidentifiable factors. As it is virtually impossible for us to have direct involvement with the product under your management, we will take no 
responsibility for any product failures which have occurred during use after completion of assembly, and any accidents or losses attributable to them.

⑥ We will take no responsibility when you have used parts other than our original ones or those produced by our authorized optional parts manufacturer, 

or for any other problems or accidents resulting from modifications.

PRODUCT WARRANTY

LIABILITY INDEMNITY

REPAIR

For repair of this JR product, please consult with your JR helicopter distributor.

The Product, by its nature, includes dangerous elements depending on how it is handled. When flying, operate it at your own risk, paying full heed to the 
surrounding persons and objects as well as yourself.
Note that we will take no responsibility for any accidents of whatever cause during use of this product.

Summary of Contents for MB-331

Page 1: ...BLY MANUAL This photo depicts the rotor head on an assembled model NEX E6 550 with optional body Specifications Compatibility NEX E6 550 Bolt hole dia 4mm Main rotor dia 1 145mm 1 1 With 510mm main bl...

Page 2: ...ll times Always read the instruction manual before use Do not disassemble except for maintenance purposes Do not modify this product Use parts only within their service specifications if indicated Do...

Page 3: ...t condition storage and the characteristics of the helicopter differ considerably depending on these unidentifiable factors As it is virtually impossible for us to have direct involvement with the pro...

Page 4: ...shown Firstly remove the swash plate and the rotor head Install the swash plate onto the main shaft and then install the linkage rod Install the main rotor head assembly using the socket head bolt M2...

Page 5: ...e the optional JR digital pitch gauge No 61796 you can make this adjustment with improved accuracy With the alignment pin inserted and the pitch jig rod installed adjust the rod length so each main ro...

Page 6: ...is done in the TAGS01 parameter setup and no big transmitter gyro gain adjustment should be required TAGS01 The TAGS01 parameters need to be optimized for the MB 331 rotor head Compared to a 2 blade...

Page 7: ...P 7 Optimized parameters NORMAL The values highlighted are modified from NEX E6 550 defaults STUNT...

Page 8: ...P 8 Red 7 R e d 2 61792 61791 81073 70720 80246 80006 61790 61788 83159 61795 81061 80227 70665 81084 61793 81047 70662 70661 61789 61651 80073 80013 61794 80164 80226 80117...

Page 9: ...bly MB 331 1 w control ball 61795 Blade holder MB 331 1 70661 Joint ball screw L4 5 70662 Universal link M2 10 70665 Washer 6 10 0 5 2 70720 Upper plate lock link 1 80006 Socket head bolt M2 8 10 8001...

Page 10: ...LOT NO 2013 02 The product and the contents of these instructions are subject to change without notice due to improvement MB 331 Manual Ver 1 1...

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