60kg servo acting weird

I'm trying to do a simple project with a 60kg servo I got off Amazon.
The servo is a DS 5160 SSG and says Dc6-8.4v on the side.
For a power supply I'm using a power cord from an old Samsung camcorder and it's 8.4v 1.0A.

When I move the servo it goes in spurts rather then continuously from one angle to another.

One review of a similar servo (probably the same one with a different name) said that when it's overloaded it will osscillate.
Is that the issue? It happens even without any load on the arm.

Is there anything I can do? The add said it runs best at 7.6 volts or around ther but I've been rummaging through my closets and this cord is the closest thing I've got.

I don't know what else it could be.

Hi,
Here is the product description for your servo.

Product Description
Apply Environmental Condition
Storage Temperature Range: -30℃~80℃
Operating Temperature Range: -15℃~70℃
Operating Voltage Range: 6-8.4V

Mechanical Specification
Size: 653048mm
Weight: 158g
Gear ratio: 279
Bearing: Double bearing
Connector wire: 300±5mm
Motor: 3-pole(s)
Waterproof performance: IP67

Electrical Specification
Operating Voltage 6V 7.4V 8.4V
Idle current(at stopped) 4mA 5mA 6mA
Operating speed (at no load) 0.17 sec/60° 0.15sec/60° 0.13sec/60°
Stall torque (at locked) 58kg.cm.@6V, 65kg.cm.@7.4V, 70kg.cm.@8.4V
Stall current (at locked) 3.5A 5A 6.2A

Control Specification
Control System: PWM(Pulse width modification)
Pulse width range: 500~2500µsec
Neutral position: 1500µsec
Running degree: 270° (when 500~2500 μ sec)
Dead band width: 3 µsec
Operating frequency: 50-330Hz
Rotating direction: Counterclockwise (when 500~2500 µsec)

Package Included:
1 X DS5160SSG 60KG Digital Servo
1 X 18T Aluminum Servo Arm
1 X Servo Horn accessories

You will note the stall current, which is the startup current for 8V4 is 6.2A.
A bit higher than your camcorder 1.0A, the camcorder is also a charger I assume, so it may not be built so these types of loads anyway.

Measure the supply voltage as you try to operate your servo.

Tom... :grinning: :+1: :coffee: :australia:

Lol, that must be it. I don't know why I assumed that was fine.
Last time I used this servo I had a bench power supply but I accidentally fried it last summer.
I guess I better buy a new one.

You need to be careful and study specifications and understand what you are doing - breaking stuff shouldn’t be happening and is expensive

Because you tried to power this servo with it? :worried:

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