This document provides original instructions for VEVOR RV Scissor Jacks. Please read all instructions carefully before operating. VEVOR reserves the right to interpret its user manual. Product appearance is subject to the received item. VEVOR will not provide separate notification for future technology or software updates.
Important Safeguards
WARNING: Read and understand this entire manual before operating or servicing this product. Failure to follow these warnings and instructions can cause personal injury or damage to valuable property.
Assembly Precautions
- Assemble only according to these instructions. Improper assembly can create hazards.
- Wear ANSI-approved safety goggles and heavy-duty work gloves during assembly and use.
- Keep the assembly area clean and well-lit.
- Keep bystanders out of the area during assembly.
- Do not assemble when tired or when under the influence of alcohol, drugs, or medication.
- Product capabilities apply to properly and completely assembled product only.
- For additional information regarding the parts listed, please refer to the Assembly Diagram. Unwrap and separate all parts in a clean work area. Keep small spare parts out of children's reach.
Save These Instructions
WARNINGS:
- DO NOT ATTEMPT TO USE THIS SCISSORS JACK TO LIFT EXCESSIVE WEIGHT OR MAKE TIRES OFF THE GROUND – VEHICLE FRAME AND DOOR JAMB DAMAGE MAY OCCUR.
- USE ONLY STOCK HANDLE SUPPLIED. DO NOT USE A CHEATER BAR ON HANDLE.
- DO NOT USE THIS SCISSORS JACK AS A TIRE CHANGING JACK.
- If the product is damaged, it must be replaced or repaired by the manufacturer, its service agent, or similarly qualified persons to avoid a hazard.
- The product is not a toy; children shall not play with the product.
- The product cannot be used by persons with reduced physical, sensory, or mental capabilities or lack of experience using the product.
- NEVER run the engine when the SCISSORS JACK is attached to the vehicle.
Specifications
Model | ST-120L | ST-120LA | ST-120CA |
---|---|---|---|
Material | Steel | Steel | Steel |
Max Load | 5000 lbs | 6500 lbs | 9000 lbs |
Altitude Range | 103-595 mm / 4-23.4 in | 103-595 mm / 4-23.4 in | 103-595 mm / 4-23.4 in |
Color | Black | Black | Black |
Package List
No. | Name | Picture Description | QTY |
---|---|---|---|
1 | RV scissor jacks | Diagram of the scissor jack mechanism. | 2 or 4 pcs |
2 | Hand crank | Diagram of the crank handle. | 1 pc |
3 | Magnetic socket | Diagram of the magnetic socket. | 1 pc |
4 | Magnetic bubble level | Diagram of the magnetic bubble level. | 1 pc |
Installation
Step 1: Preparation for Installation
- Park RV on level ground. Prevent wheels from rolling by activating the emergency brake and/or using tire chocks.
- Before proceeding with installation, perform this important test to ensure that the jack has sufficient position clearance to close and open at the installation location:
- Clamp the jack to the vehicle frame using two "C" clamps or Vise grips.
- Close the jack with the crank handle and check to ensure that the chosen location will allow the jack to close without coming into contact with or obstructing any under-chassis components (e.g., plumbing, exhaust, etc.).
- Open the jack until it touches the ground. Recheck location and adjust as needed.
- Once in place, apply enough pressure so the jack cannot move during the installation procedure. After the installation is completed, remove clamps or Vise grips.
Step 2: Fix the Jack
Method 1: Bolt-On Installation (Hardware not included)
WARNING: BEFORE DRILLING HOLES, BE SURE THE DRILL WILL NOT DAMAGE UNDER-CHASSIS COMPONENTS WHICH MAY BE ROUTED INSIDE VEHICLE FRAME (e.g: Electrical, gas, water, generator fuel lines, holding tank plumbing, water heater).
- Using the mounting plate as a template, mark the locations of the four mounting holes on the vehicle frame. Then remove the jack.
- Mark the center of each hole location with a center punch and hammer.
- Drill a 1/8" pilot hole and finish by drilling holes with a 5/16" diameter drill.
- Reposition the jack. Use a 9/16" socket and ratchet to install the jacks to the vehicle frame using four screws and four lock washers per jack.
Diagram illustrating the bolt-on installation of the scissor jack to a vehicle frame using screws and washers.
Method 2: Weld-On Installation
Weld each mounting plate to the vehicle frame with 1" welds, as shown.
Diagram illustrating the weld-on installation of the scissor jack mounting plate to a vehicle frame using welds.
Operation
- Park RV on level ground; prevent wheels from rolling, use tire chocks.
- Level trailer fore and aft using tongue jack or landing gear.
- Check level gauge for the low side of the trailer. Crank down stabilizers on the low side first, bringing the trailer to a fine level position.
- Crank down stabilizers on the opposite side of the trailer to ensure maximum stability. Then re-snug stabilizers on the low side of the trailer if necessary.
Note: Before Moving Trailer
Crank up stabilizers to the fully closed position and tighten 1/4 turn to secure in Travel position. This prevents stabilizers from working open due to road vibration.
Maintenance
Use small amounts of WD-40 or similar lubricant on drive screw threads and bolt locations as required.
Technical Support and E-Warranty Certificate
For support, visit: www.vevor.com/support