RJX Hobby X-Treme 90 User Manual

Technical Data:
Overall Length
Overall Height
Overall Wide
Main Rotor Diameter
Tail Rotor Diameter
Gear Ratio
Gross Weight
1340 mm
430 mm
210 mm
1690 mm
281 mm
8.1.8:1:4.7 + 8.4.5:1:4.7
4300g - 4600g
PLEASE READ AND UNDERSTAND THE INSTRUCTIONS THOROUGHLY BEFORE ASSEMBLY

RJX Hobby X-Treme 90 Specifications

General

Brand	RJX Hobby
Model	X-Treme 90
Category	Toy
Language	English

Summary

INTRODUCTION

WARNING

Information regarding the hazards and safe handling of fuel for model helicopter engines.

STEP 1-1 Clutch Bell / Starter Shaft BB Block Assembly

STEP 1-2B Tail Drive Pinion Gear Assembly (Belt Version)

STEP 1-2TT Tail Drive Pinion Gear Assembly (TT Version)

STEP 1-3 Drive Gear Assembly

STEP 1-4 Fuel Tank and AUX Tank Assembly

STEP 1-5 Swash Control Lever Assembly

STEP 1-6 Swash Control Assembly

STEP 1-7 Front Tail Arm Assembly

STEP 1-8 Battery Tray Assembly

STEP 2-1 Main Frame Assembly (TT+Belt)

STEP 2-2 Main Frame Assembly (TT+Belt)

STEP 2-3B Main Frame Assembly (Belt Version)

STEP 2-3TT Main Frame Assembly (TT Version)

STEP 2-4 Main Frame Assembly (TT+Belt)

STEP 2-5/1 Main Frame Assembly (TT+Belt)

STEP 2-5/2 Main Frame Assembly (TT+Belt)

STEP 2-6 Clutch Sytem Assembly (TT+Belt)

STEP 2-7 Main Frame Assembly (TT+Belt)

STEP 2-8 CCPM Sytem Assembly (TT+Belt)

STEP 2-9 Main Tank (Engine WITHOUT Tank Preasure)

STEP 2-9/1 Main Tank (Engine WITH Tank Preasure)

STEP 2-10 Main Frame Assembly (TT+Belt Version)

STEP 2-11 Landing Skid Assembly

STEP 2-12 Landing Gear Assembly

STEP 2-13 Landing Gear Assembly

STEP 3-1 CLUTCH/COOLING FAN ASSEMBLY

STEP 3-2 ENGINE INSTALATION

STEP 3-3 ENGINE INSTALATION

STEP 3-4 ENGINE-PINION GEAR LINEOUT

STEP 4-1 SWASHPLATE ASSEMBLY

STEP 4-2 WASHOUT ASSEMBLY

STEP 4-3 SWASHPLATE / WASHOUT INSTALLATION

STEP 4-4 SEESAW INSTALLATION

STEP 4-5 MAIN BLADE HOLDER ASSEMBLY

STEP 4-6 MIXER ARM ASSEMBLY

STEP 4-7 MAIN ROTOR HEAD ASSEMBLY

STEP 4-8 MAIN ROTOR HEAD ASSEMBLY

STEP 4-9 MAIN ROTOR HEAD ASSEMBLY

STEP 4-10 CONTROL ROD INSTALLATION

STEP 4-11 CONTROL ROD INSTALLATION

STEP 4-12 ROTOR HEAD SETUP

STEP 4-12 MAIN ROTOR HEAD ASSEMBLY

STEP 4-13 ROTOR HEAD SETUP

STEP 5-1B TAILCASE ASSEMBLY (Belt Version)

STEP 5-1TT TAILCASE ASSEMBLY (TT Version)

STEP 5-2B TAILCASE ASSEMBLY (Belt Version)

STEP 5-2TT TAILCASE ASSEMBLY (TT Version)

STEP 5-3 TAILCASE ASSEMBLY (TT+Belt Version)

STEP 5-4 TAILCASE ASSEMBLY (TT+Belt Version)

STEP 5-5 TAILCASE ASSEMBLY (TT+Belt)

STEP 5-5TT Torque Tube ASSEMBLY

STEP 5-6B TAILCASE ASSEMBLY

STEP 5-6TT Torque Tube ASSEMBLY

STEP 5-7 TAILCASE ASSEMBLY (Belt Version)

STEP 5-7TT TAILCASE ASSEMBLY

STEP 5-8 TAIL BOOM INSTALATION (Belt Version)

STEP 5-8TT TAILBOOM ASSEMBLY(TT Version)

STEP 5-9 TAIL BRACE ASSEMBLY (TT+Belt Version)

STEP 5-10 TAIL BRACE ASSEMBLY (TT+Belt Version)

STEP 5-11 TAIL BRACE INSTALLATION (TT+Belt Version)

STEP 5-12 TAIL CONTROL ROD ASSEMBLY (TT+Belt Version)

STEP 6-1 SERVO INSTALLATION(CCPM Servo)

STEP 6-2 SERVO INSTALLATION(CCPM)

STEP 6-3 SERVO INSTALLATION (Tail Servo)

STEP 6-4 SERVO INSTALLATION(Throttle Servo)

STEP 6-5 RECEIVER / GYRO / BATTERY INSTALLATION

STEP 6-6 SERVO ARM PREPARATION AND INSTALLATION

STEP 6-7 LINKAGE CONNECTION

STEP 6-8 LINKAGE CONNECTION

STEP 7-1 PHASE RING ADJUSTMENT

STEP 7-3 MAIN / TAIL BLADE INSTALLATION

STEP 8-1 FINAL SERVO AND RADIO SETUP

1.Checking the servo rotation.

2.Travel Adjust.

STEP 8-2 FINAL SERVO AND RADIO SETUP

5. Gyro Gain Adjustment

Adjust gyro gain to prevent tail movement, starting at 80% and fine-tuning.

6. Gyro Direction

Set gyro direction correctly to prevent uncontrollable pirouettes during flight.

STEP 8-3 FINAL SERVO AND RADIO SETUP

7.Collective Pitch Setup.

Set collective pitch angles for normal, idle up, and autorotation modes using a pitch gauge.

8.Pitch Curve

STEP 8-4 FINAL SERVO AND RADIO SETUP

9. Throttle Curve

10. Engine Adjustment

11. Final Checks before attemping to flights

Perform thorough checks of servos, gyro, controls, and blades before flying.

STEP 8-5 FINAL SERVO AND RADIO SETUP

PLEASE READ BEFORE FLIGHT

Pre-Flight

When Flying.