PRECAUTIONS
NEVER FREE-REV THE MOTOR!
Free-running your brushless motor in a no-load
condition can result in rotor failure and ESC transistor
damage. This includes holding your vehicle in the air,
and free revving the motor while installed into the
vehicle. This will void the product’s warranty!
• WATER & ELECTRONICS DON’T MIX
Never allow water,
moisture, or other foreign materials to get inside motor.
• NOVAK ESC FOR BEST RESULTS
Use Novak Activ8 V2 for best
performance & protection. Only use motors with the proper
Kv to match ESC’s rating.
• DO NOT OVERHEAT THE MOTOR
Temperatures above 180
°
F
(82
°
C) will weaken the magnet and may melt the coils. This
voids the warranty and can damage the ESC.
• INSULATE EXPOSED WIRES
Use heat shrink tubing to prevent
shorts. Refer to ACCESSORIES for Novak heat shrink kits.
• NO SOLVENTS
Do NOT expose the motor to any type of solvents.
• SET GEAR MESH PROPERLY
Too tight of a gear mesh can
result in motor pinion shaft breakage--be sure to adjust the
gear mesh properly.
SPECIFICATIONS
Input Voltage ...................... 2S-4S LiPo/LiFe cells (7.4-14.8 max VDC)
Motor Kv ..............................................1,900 (#3810), 2,200 (#3811)
Design .......... Sensor-based
(compatible with Sensored/Sensorless ESCs)
Motor Size ......................................1.57” D x 2.80” L x / 40 x 71mm
Weight .....................................................................11.8 oz / 334.5 g
Output Shaft Dimensions ........ 5mm Diameter; 19mm legth with flat
Rotor ................................ 4-pole, high-strength sintered Neodymium
Stator ....................................................................................... 12-slot
Max. RPM ................................................................................50,000
Mounting .................................M3x0.5 and M4x0.7 spaced at 25mm
Recommended ESC ......................................Novak Activ8 V2 (#1726)
1.
Insert the motor mounting screws that came with your vehicle
through the motor mounting plate.
Novak HD8 motors need
no more than 1/4” of screw extending past the vehicle’s
mounting plate (6.5 mm)
.
Too little can strip motor’s threads.
Too much will cause internal motor damage and void warranty.
2.
Attach the motor to the vehicle’s motor mount using one of
the sets of threaded mounting holes (M3x0.5 or M4x0.7).
Select a mounting position that keeps the solder tabs clear
of conductive surfaces like aluminum or graphite.
Note: An adhesive-backed foam pad is enclosed to be used to
support the rear of the motor to prevent flexing of the motor on
hard impacts. Use this if your vehicle does not have this feature.
STEP 1- INSTALL MOUNTING PLATE
A pinion gear with a 5mm bore is needed. Novak offers high-
quality Mod 1 (
#5112-5124
) and 32-Pitch (
#5152-5161
) gears.
1.
Install pinion gear on the motors output shaft and test fit in
vehicle to align pinion and spur gears.
Refer to GEAR SELECTION (on the back) for additional
information on selecting the proper pinon gear.
2.
Tighten pinion’s set screw on the flat of motor shaft.
3.
Adjust the motor position for proper amount of free play.
It is important to have a small amount of play between the
pinion gear and the spur gear
(about the thickness of piece of
paper)
.
Check the free play at several positions around the
spur gear to ensure a proper mesh
.
MAKE SURE PINION/SPUR GEAR MESH IS NOT TOO
TIGHT! IF GEAR MESH IS TOO TIGHT, MOTOR SHAFT
BREAKAGE CAN OCCUR.
4.
Tighten motor mounting screws.
Avoid using excessive force,
as the threaded holes in motor could become stripped.
STEP 2- INSTALL PINION GEAR
I
NSTALLATION
INSTRUCTIONS
HD8 1/8 SCALE
Motor Instructions
#55-3810M-1 Rev.1
4-2015
5351-4 Shielded Sensor Harness
--Double-ended. Available in 4”, 6”, 9”, and 12”
5512
12GA Power Wire Set
--3 feet each black, red, and blue
5654
High RPM Cooling Fan--30x30x10mm
--With 2-pin JST connector.
5741
4mm Power Connectors/5pair
--Gold plated low-loss high-amp connectors.
5832
Lead-Free 3% Silver Solder--15g Tube
--Low-resistance, high-conductivity
5852
Heat Shrink Tubing--40pcs Blk/Red
--1” pieces in 1/4” size--20 each
5860
Speed Lube--10ml
--Premium American-made bearing oil with penetrative additives
The HD8 Motor is completely rebuildable, with full component availability.
Refer to website for component list. www.teamnovak.com
ACCESSORIES
The Activ8 V2 ESC (recommended) comes pre-wired with 12GA
silicone power wires. You will need a high-powered soldering
iron, solder (
Novak #5832 or #5853
), solder flux (
Novak #5861
)
and a pair of wire strippers (
Novak #5880
).
1.
Determine the best routing in the vehicle for the motor’s
silicone power wires.
Avoid any moving parts & suspension.
2.
Prepare ends of power wires by stripping 3/16 - 1/4” of
insulation from end of wire. Tin wire ends with solder.
3.
Lay tinned end of the wire flat on the proper soder tab
(refer to
phase markings on the endbell)
and solder wires to the motor.
Apply heat with a high-power soldering iron to the power
wire and solder tab- begin adding solder to tip of iron and to
wire. Add just enough solder to form a clean and continuous
joint from the solder tab up onto the wire.
Be sure no phase wires make contact with
an adjacet solder tab- this will cause short-
circuiting, damage electronics, & void warranty.
DO NOT OVERHEAT SOLDER TABS
Prolonged/excessive heating will damage tabs
and void warranty
Refer to Novak’s Website for videos on soldering
STEP 3- SOLDER POWER WIRES
