How to properly use the GoJak G9516 Two-Speed Cam Mechanism

How to Properly Use the Two-Speed Cam Mechanism (GoJak G9516)

⚠️ Why This Matters

The two-speed cam mechanism is not just a feature—it’s what allows the G9516 to safely handle heavy vehicles without excessive force.

Improper use can result in:

Difficulty lifting heavy loads
Premature wear on components
Inability to shift gears under load

Understanding how and when to switch speeds is critical for safe, efficient operation.

Understanding the Two Speeds

High Speed (Standard Mode)

Longer pedal stroke
Faster lifting
Engages wider ratchet spacing (¾")
Audible: Two clicks per stroke

✅ Best for:

Initial positioning
Lighter vehicles
Faster operation when resistance is low

Low Speed (Power Mode)

Shorter pedal stroke
Increased mechanical leverage
Engages tighter ratchet spacing (⅜")
Audible: One click per stroke

✅ Best for:

Heavy vehicles
When resistance increases
Controlled, high-force lifting

Standard Operating Procedure

1. Position the GoJak

Open the unit fully
Center it around the tire

2. Start in High Speed

Flip the directional lever up
Begin cycling the pedal

This is your default mode for speed and efficiency.

3. Evaluate Load Resistance

As you begin lifting, pay attention to:

Pedal resistance
Vehicle weight
Smoothness of operation

👉 If resistance increases → switch to low speed

Switching to Low Speed (Before Load)

If you anticipate a heavy lift:

Slightly depress the pedal
Relieve pressure between components
Flip the cam lever
Resume cycling

✔ This is the preferred method whenever possible

Switching Speeds Under Load (Critical Procedure)

You can shift while the vehicle is lifted—but this must be done correctly.

Step-by-Step:

Use your hand to slightly depress the pedal
This relieves pressure between the ratchet and cam
With your other hand, flip the cam lever
Resume operation

⚠️ Critical Rule

Never attempt to force the cam lever under load without relieving pressure.

Failure to do this can:

Lock the mechanism
Cause unnecessary strain on components
Lead to improper engagement

How to Confirm You’re in the Correct Mode

Use sound and feel:

Two clicks per stroke → High Speed
One click per stroke → Low Speed

This is the fastest way for operators to verify proper engagement.

Lowering the Vehicle (Important Behavior)

Key Point:

Lowering speed is always the same—regardless of which gear was used to lift.

If You Lifted in Low Speed

Flip the directional lever down
The cam mechanism will automatically flip down in unison and reset
Lower as normal

If You Lifted in High Speed

Flip the directional lever down
Cam position remains unchanged
Lower as normal

Best Practices for Operators

✔ Start in high speed, switch only when needed
✔ Use low speed for heavy vehicles to reduce effort
✔ Always relieve pressure before shifting gears
✔ Use audible clicks to confirm correct operation
✔ Train operators to recognize resistance early

Common Operator Errors

1. “The cam lever won’t move”

Cause: Pressure is still applied
Fix: Slightly depress pedal → then switch

2. “Unit feels too hard to pump”

Cause: Using high speed under heavy load
Fix: Switch to low speed

3. “Mechanism feels stuck”

Cause: Attempted gear change under full load without relief
Fix: Relieve pressure before adjusting

Key Takeaway

The two-speed cam system is designed to give you:

Speed when you want it
Power when you need it

Operators who use it correctly will:

Work faster
Use less effort
Extend the life of the equipment

🎥 Video Demonstration Found Can Be Found Here

https://www.zendextool.com/product/gojak-g9516/

https://www.zendextool.com/resource-center/product-manuals/