RC-Tek SJM180-C PRO User manual

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RC-TEK
SJM180(215)-C/F PRO Reference Assembly Manual
CONTENTS
1. Important Notes
2. Packing List
3. Photographic Assembly Reference Guide
4. Spare Parts List
Copyright © 2008 RC-TEK/SGB Enterprises LLC. All Rights Reserved.
SJM180(215)-C/F PRO Specifications:
•Airframe Weight (Including FG Canopy and Main Blades): 198g
•RTF Weight: Approx. 350g
•Airframe Length (With Canopy): 430mm
•Airframe Width: 100mm
•Airframe Height: 170mm
•Main Blade Disk Diameter: 475mm (215mm Main Blades)
•Flybar Paddle Disk Diameter: 200mm
•Flybar Rod Size: 155mm x Ø1.5mm
•Tail Rotor Disk Diameter: 108mm (43mm Tail Blades)
•Main Shaft Size: Ø4mm
•Tail Rotor Shaft Size: Ø3mm
•Tail Boom Diameter (External): Ø11mm
•Main Drive Gear: M0.4 100T
•Main/Tail Gear Ratio: 1:4.8
•Integrated Ball Bearings (Entire Helicopter): 27
•Optional PRO Motor: 3000KV 2~4S (225w)
•Optional PRO ESC: SJM30A(Plus) 2~4S (40A Burst) w/ 2A(3A Max) BEC

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RC-TEK
SJM180(215)-C/F PRO Reference Assembly Manual
Thank you for your purchase of the innovative SJM180(215). In order to ensure proper operation of this high performance helicopter in a safe manner,
please read this reference manual completely before attempting to fly to the SJM180(215). Additionally, please observe all flying rules and flight precautions
while fully understanding the capabilities and limits of the SJM180(215). Be sure to retain this manual for future reference, routine maintenance, and tuning.
Assembly Tip: Use CA or loctite (#242) on all important screws throughout the SJM180(215) before fastening each screw.
Important Notes:
•The helicopter is recommended for skilled intermediate to advanced RC helicopter flyers.
•Make sure to read and follow all the instructions in this manual, including all accessories.
•Should any uncertainty arise, please consult with an experienced RC helicopter hobbyist and/or instructor BEFORE any attempt is made to fly this
helicopter.
•Always find an experienced and qualified secondary party to assist pre-flight inspection.
•Make sure the proposed flight vicinity is in an open space; free of crowds, obstacles, and buildings. Failure to abide may cause accidental and
potentially hazardous encounters.
•Any introductory flight should incorporate only basic maneuvers (hovering, linear ascending, and descending) until the stick feel is mastered.
•Do not operate the stock 215mm fiberglass main blades above 4000 RPM or the optional carbon fiber blades above 4300 RPM.
Precautions:
•Fly only in safe areas, away from other people. Do not operate RC helicopters within the vicinity of homes or crowds of people. RC helicopters are
prone to accidents, failures, and crashes due to a variety of reasons including, lack of maintenance, pilot error, and radio interference. Pilots are
responsible for their actions and damage or injury occurring during the operation or as of a result of RC helicopter models.
Recommended Equipment NOT included in the SJM180(215) base kit:
•Radio Control System – 6 channels or more CCPM helicopter compatible transmitter or equivalent
•Receiver – 6 channels or more
•Gyro – RC-TEK 700/800 series, Spartan DS-760, Logictech 2100T
•Servos – (4) Servos – SJM SDG-402MG, Hitec HS-55/65, or equivalent (5.0~10.5g)
•Battery – (1) 3S 1000mA 20C+ Li-Po Battery (or 4S 850mA 20C+)
Copyright © 2008 RC-TEK/SGB Enterprises LLC. All Rights Reserved.

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RC-TEK
SJM180(215)-C/F PRO Reference Assembly Manual
Pre Flight Checks:
1. As a precautionary avoidance to frequency interference (two different helicopters utilizing the same frequency), it is important to keep the remote
controllers and helicopters apart for at least a distance of 0.5 miles. In order to prevent accidental encounters from occurring; please make sure the
surrounding areas (the flight area) are not populated with crowds and/or buildings (look for open space). Any open space vicinity should be at least 100 feet
in all directions.
2. Make sure the battery is completely charged. Read carefully the suggested charging time and maintenance procedures listed in the instruction manual.
Attempted flight without a fully charged battery will result in an unexpected loss of power, directional control, and/or costly accidental crashes. Remember,
by NOT discharging the battery completely during usage, you will maintain its efficiency and increase its life span.
3. You are now ready to turn ON both the transmitter (remote control) and the receiver (located on the helicopter). Make sure the helicopter is placed on a
flat leveled surface on the ground before commencing. Always turn on the transmitter (remote control) FIRST before turning on the receiver.
4. Test and confirm the directional controls are working properly. Try moving the directional stick and study the resulting effects of the helicopter. If no
resulting movement is noticed when moving the directional stick, do not attempt flight as either the helicopter or the remote control may be defective.
5. Before any test flight, it is recommended to tie the helicopter to a fixed restraint mechanism under safe conditions and then gradually increase its power;
making sure the helicopter can perform various movements until at least one battery is depleted in order to confirm all parts fit properly. When finished,
carefully check the entire helicopter over to see if there are any loose parts and/or screws and make adjustments as needed.
The following guidelines list the most recommended methods for a beginner to commence their journeys into the remote control flying realm (listed in the
order of importance):
1. Find an experienced Instructor – most likely can be found at your local hobby store.
2. Join a RC club in your nearby area – can be found through the internet, hobby stores, parks, and friends (word of mouth).
3. Make sure you are standing directly behind the helicopter before any attempted flight.
4. Slowly introduce power to the helicopter in a continuous and stable pace.
5. Analyze carefully the characteristics of the helicopter. As more power is introduced, the helicopter will begin its ascension progress. Make directional
adjustments to counter and insure a linear ascending or descending path.
6. Make sure never to exceed a flying height of over 3 feet! Anything over the recommended height can and may cause major damage to the helicopter
if crashed.
Copyright © 2008 RC-TEK/SGB Enterprises LLC. All Rights Reserved.

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RC-TEK
SJM180(215)-C/F PRO Reference Assembly Manual
7. Upon reaching the recommended maximum height, slowly release and let off on the throttle till landing. Always maintain the helicopter’s plane level
to the ground.
8. Continually practice this technique until you can masterfully perform linear ascending and descending paths, as well as stationary hovering
capabilities.
9. As your skills improve, slowly introduce lateral movements to the helicopter; with your starting point of spot as the final goal (position). Make sure to
keep the lateral distances within a 3 feet diameter. Furthering the recommended distance will increase accidental encounters.
10. Once these techniques are mastered, you are now ready to elevate both your helicopter and flying skills to its potential.
11. It’s strongly recommended for softened landings, slightly tilt and allow the front part of the landing strut to touch down, followed by the rear half.
Notes:
The majority of crashes experienced by beginners are associated with behaviors of nervousness and/or panic. Only a small percentage is directly related to
mechanical failures. Repetitive practice is the only way to enhance your skills such as developing controls sensitivity, awareness, and understanding. Regular
maintenance is required to keep the SJM180(215) helicopter in optimal and safe flying condition. This helicopter requires precise configuration of the
components and settings to be kept by the owner. Conduct regular maintenance on the SJM180(215) to avoid accidents or loss, and to ensure optimal
performance.
Main Rotor Checklist:
1. Main rotor housing: When the main rotor housing is worn or faulty, there will be obvious vibration and poor flight control. Check the main rotor, main
shaft, and feathering shaft for wear or deformity. Replace parts as necessary to eliminate imbalance.
2. O-rings
[not used on the SJM180(215)] : The O-rings will lose their elasticity over time. This will cause excess play on rotor and cause instability.
Replace as needed.
3. Main rotor hub: If the helicopter will not fly or begins to reacts sluggishly, even after checking for proper setting of pitch and throttle, check the
following items:
•Blade grip Bearings
•Swing arm/control arm bearings
•Rotor blades
•Other relevant moving parts
4. Check for excess play or gaps between the surfaces, missing or broken parts, or binding restricting free movement. It is very important to check for
main rotor balance before each flight. Operating the helicopter “out of balance” will cause excessive wear and premature failure of parts, possibly
resulting in a dangerous situation.
Copyright © 2008 RC-TEK/SGB Enterprises LLC. All Rights Reserved.

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RC-TEK
SJM180(215)-C/F PRO Reference Assembly Manual
5. Control arm assembly: Check regularly for cracked, worn, bent or binding control arms and pushrods. Smooth movement of control arms and
linkages is required for stable, vibration free flight.
6. Swash-plate: Check for excess slop in the main ball that the main shaft rides on and slop or looseness among all the metal parts. Swash-plate wear
will result in poor stability and lack of control during flight. Replace as necessary.
Fuselage/Chassis:
1. Main shaft bearing: The normal replacement interval for proper operation is between 60-100 flights. If performing 3D or other extreme aerobatics,
inspect the bearing more frequently and shorten the interval as necessary.
2. One-way bearing
[not used on the SJM180(215)] : One-way bearings have longer lifetimes and failure is not common. To keep the one-way bearing
in good operation, remove it to clean and lubricate after every 50 flights. If the main drive gear is loose, you should replace the one-way bearing.
3. Drive belt: SJMRC/RC-TEK uses only top quality, stretch-resistant belts. It is however, impossible to prevent the belt from stretching or wearing out.
Check belt tension regularly, and check for the wear on the teeth. Replace as necessary.
Linkage Rods and Connecting Parts:
During assembly, take special care to keep the connecting parts in smooth operation, and avoid excess play or binding. Failure to do so will result in poor
flight stability. The linkage rods and ends will break and wear due to normal usage, crashing, and poor maintenance. Check for wear and proper operation
regularly and replace as needed.
Tail Rotor System:
1. Tail rotor control set: Check the tail rotor bearing regularly. If there is excess play or gaps, replace immediately. Avoid any binding or improper
contact on the tail components and bearings as this will cause excessive wear and heat, potentially melting and/or deforming the tail system.
2. Tail unit assembly: Avoid flying in tall grass or weeds. If grass or weeds become lodged in the tail rotor unit, it may interfere with the operation, and
cause the helicopter to lose control. Always check for foreign objects in the tail and clean them off immediately. Avoid using lubricants on the
exposed surfaces of the SJM180(215) as it will attract and collect dirt and debris and potentially cause hardware failure.
Copyright © 2008 RC-TEK/SGB Enterprises LLC. All Rights Reserved.

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RC-TEK
SJM180(215)-C/F PRO Reference Assembly Manual
3. Tail rotor housing: Disassemble the tail rotor housing for cleaning and maintenance after every 50 flights. If the tail does not operate smoothly or
exhibits any signs of stress or wear, it should be replaced immediately.
4. Tail rotor: Check the tail rotor blades regularly for damage, especially if the helicopter ever strikes the ground while flying or after any hard landings.
Damaged tail blades can induce vibration.
Closing Reminder:
Maintaining and taking care of your SJM180(215) on a regular basis will result in the helicopter providing you with safe and enjoyable flying experiences for
years to come.
RC-TEK, Ltd.
www.rc-tek.com
www.sjmrc.us
World Wide Sales and Support:
[email protected]
[email protected]
Worldwide Headquarters:
848 N. Rainbow Blvd., Suite 1089
Las Vegas, NV 89107 USA
Tel: [phone]
Fax: [phone]
ENJOY YOUR NEW SJM180(215)!
RM-REVA082108 SGBE Copyright © 2008 RC-TEK/SGB Enterprises LLC. All Rights Reserved.

7
SAFETY WARNING
1. This RC helicopter is NOT a toy. This helicopter generates large amounts of force and can fly at
high rates of speed. Always operate this helicopter under the guidance of someone experienced
in R/C aerial flight.
2. Always fly under safe weather and environmental conditions.
3. After initially applying electrical power to the helicopter, the unit might vibrate strongly or out of
control due to nearby electrical magnetic interference (EMI) or other radio interference fields
(RFI) caused by various consumer appliances and other remote control transmitters. Therefore,
it is recommended to keep a safe distance from these types of environments whenever possible.
Be alert to harmful interference at ALL times.
4. The technology used in today’s helicopter batteries might explode and/or cause a fire in the case
of a short circuit initiated by moisture, heat, or blunt physical force. Treat all batteries with care
and safety in mind.
5. This helicopter frame structure has a maximum revolving blade speed rating of 3300 RPM. DO
NOT attempt to operate this helicopter above this maximum RPM or damage and potential human
injury may occur.
6. It is recommended to check and renew the main rotor blades frequently as the leading edge
areas will degrade and operate less efficiently after moderate use.
7. Condition all electrical batteries according to industry guidelines in order to reduce the risk of
electrical dangers.
8. The operator of this helicopter is ultimately responsible for his/her own actions and any/all
potential damaged caused either directly or indirectly as a result of such operation. RC-TEK Ltd.,
its agents and/or subsidiaries shall be held harmless for any financial, physical, or emotional loss
caused by the operation of this helicopter. Please contact [email protected] if you have any
questions relating to this clause.

PARTS
PKGNO. NAME SPECIFICATION QUALITY UNIT
MT8027 Main boom M11×295.4 1 pcs
PS8001 Belt 205 1 pcs
MT8001 Unit housing 1 set
MT8028 Transmission shaft 2×42 1 pcs
PS8003 Transmission gear 20T 1 pcs
Wheel fend 1 pcs
Top ring 3.5×2×1.5 1 pcs
BR8003 Bearing 2×6×H2.5mm 2 pcs
SC8004 Cap screw M2×10mm 4 pcs
SC8007 Set screw M3×3mm 1 pcs
SC8017 Round head screw M1.6×4mm 4 pcs
MT8002 Back servo mount 1 pcs
MT8003 Tail shaft housing 1 pcs
MT8004 Tail servo mount 2 pcs
MT8005 Boom support stand 1 pcs
MT8006 Strengthen device 1 pcs
MT8007 Tail housing tighten device 1 pcs
MT8008 Gyro board link 1 pcs
FG/CF8002 Gyro board 1 pcs
FG/CF8002 Beam board 1 pcs
FG/CF8001 Vertical blade 1 pcs
BR8004 Bearing 3×9×H2.5mm 2 pcs
MT8023 Underlay 2.5 2 pcs
Underlay 3×5×H0.5mm 1 pcs
Tail shaft underlay 3×5×H1.7mm 1 pcs
SC8011 Countersunk screw M1.6×6mm 1 pcs
SC8013 Countersunk screw M2×3mm 2 pcs
SC8017 Round head screw M1.6×4mm 4 pcs
SC8002 Cap screw M2×5mm 10 pcs
SC8003 Cap screw M2×8mm 1 pcs
SC8009 Cap screw M2×12mm 2 pcs
MT8029 Tail shaft M3×37.5mm 1 pcs
SC8008 Cap screw M2×4mm 3 pcs
MT8009 Tail blade set 1 set
MT8010 Pad pillar 2×4×10mm 1 pcs
SC8005 Cap screw M2×16mm 1 pcs
BR8003 Bearing 2×6×H2.5mm 2 pcs
MT8010 Angel adjusting arm 1 set
MT8011 Sliding shaft set 1 set
PS8002 Main gear 1 pcs
MT8033 Main gear bolt 1×11 1 pcs
FG/CF8003 Fixing board pad pillar 4*10.2mm 2 pcs
MT8012 Main shaft stand 1 set
MT8030 Main shaft 1 pcs
MT8022 Main shaft fixing ring 1 pcs
MT8013 Swash plate 1 pcs
Fixing board set 1 pcs
Fixing board 1 pcs
Up servo mount 1 pcs
Down servo mount 1 pcs
BR8005 Bearing 4×8×H4mm 2 pcs
SC8004 Cap screw M2×10mm 4 pcs
SC8003 Cap screw M2×8mm 2 pcs
SC8005 Cap screw M2×16mm 2 pcs
SC8002 Cap screw M2×5mm 4 pcs
NU8001 Nut M2 2 pcs
MT8023 Underlay 2.5 4 pcs
SJM180(215) PARTS LIST
FG/CF8003
4
MT8028
MT8029
1
2
3
FG/CF8002
RC-TEK

PARTS
PKG NO. NAME SPECIFICATION QUALITY UNIT
FG/CF8004 Horse 2 pcs
FG/CF8005 Motor board 1 pcs
FG/CF8006 Tail boom support board 2 pcs
NU8001 Nut M2 6 pcs
SC8010 Cap screw M2×20mm 2 pcs
MT8014 Motor mount 1 pcs
FG8009 Canopy rubber 2 pcs
FG/CF8007 Canopy 2 pcs
SC8003 Cap screw M2×8mm 5 pcs
SC8002 Cap screw M2×5mm 6 pcs
MT8015 Flybar centre ball set 1 pcs
MT8016 Flybar rod copper boom 2 pcs
MT8026 Flybar linkage ball 2 pcs
MT8017 Main blade clincher center 1 pcs
MT8018 Flybar stand 1 pcs
MT8019 Screwpitch rod set 2 pcs
MT8020 Mixing control arm 2 pcs
MT8021 Main blade clincher 2 pcs
MT8031 Flybar rod 1 pcs
PS8010 4.8S Ball link 4 pcs
MT8025 4.8 Linkage ball 2 pcs
SC8015L Countersunk screw M2×10mm 2 pcs
SC8016 Round head screw M1.6×6mm 6 pcs
MT8023 Underlay 2.5 4 pcs
SC8002 Cap screw M2×5mm 4 pcs
SC8007 Set screw M3×3mm 16 pcs
BR8003 Bearing 2×6×H2.5mm 4 pcs
MT8023 Underlay 1.5 2 pcs
FG/CF8002 Strengthen board 2 pcs
PS8007 Flybar 2 pcs
MT8024 3.8 Linkage ball 2 pcs
MT8035 Rod M2×10mm 2 pcs
MT8032 Feathering shaft M3×14mm 2 pcs
SC8014 Countersunk screw M2×8mm 2 pcs
SC8001 Cap screw M1.5×7mm 2 pcs
SC8008 Cap screw M2×4mm 2 pcs
BR8002 Bearing 3×6×H2.5mm 6 pcs
BR8001 Bearing 1.5×4×H2mm 4 pcs
MT8023 Underlay 2 2 pcs
MT8036 Motor gear M0.4 T10 1 pcs
MT8037 Motor gear M0.4 T12 1 pcs
MT8034 Rod 5 pcs
FG8008 Main blade 215 2 pcs
PS8005 Tail servo rod 1 pcs
servo linkage ball set 4 set
MT8040 Cap wrench 1.5mm 1 pcs
MT8039 Cap wrench 1.3mm 1 pcs
MT8038 Cap wrench 0.9mm 1 pcs
NOTE: FG/CF depends on the version of the SJM180(215) kit.
Tools and
spare parts
SJM180(215) PARTS LIST
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