FAQs
PRE-SALE QUESTIONS
Do you accept normal credit terms?
All orders are subject to Seller’s evaluation of Customer’s credit. Provided the Seller in its sole discretion deems the Customer to be credit worthy, standard terms are net 30 days. Seller reserves the right to reject and/or suspend delivery of any order at any time if Seller determines the Customer’s credit to be unfavorable. If Seller for any reason in its sole discretion feels insecure about the Customer’s willingness or ability to perform, Seller shall have the unconditional right to require payment in full in advance of delivery.
Do I have to pay tax?
If you are not a tax exempt company, you do have to pay tax at a 6% rate because we are located in Michigan. This must be added to the order when purchase order is sent in.
TROUBLESHOOTING
What type of oil should I use?
Please refer to our Hydraulic Scissor Lift Manual Oil Viscosity Recommendations.
Lift does not raise (power unit is running or humming).
- Rotation of 3-phase motor may be reversed. Reverse any two electrical leads.
- Motor may be single-phasing (humming). Check wiring.
- Voltage at motor terminals may be too low to run pump at existing load. Check by measuring voltage at motor terminals, or as near as possible while pump is running under load. Reading source voltage or pump-idling voltage is meaningless. Inadequate or incorrect wiring can starve the motor when the source voltage is ample. Correct as necessary.
- Check for line or hose leak. Correct as necessary.
- Check for oil shortage in reservoir. Add oil if necessary.
- Load may exceed rating. Remove excessive load.
- Suction screen may be clogged, starving pump. Screen is attached to suction line in tank. Remove and clean. Drain and replace oil.
- Breather cap on reservoir may be clogged. Remove and clean.
- “Down” valve may be energized by faulty wiring or stuck open. Remove solenoid and check.
- Pump may be seized if motor is humming or blowing fuses or overloads.
Motor labors or heats excessively.
- Voltage may be low. Check at motor terminals while pump is running loaded, not at line source or while pump is idling, inadequate wiring can starve motor, even when source voltage is ample.
- Wiring may be incorrect. On 3-phase units using twist-lock plug, make sure that one leg of motor line is not connected to ground prong.
- Pump may be binding from oil starvation, which develops high internal heat. Pump can be irreparably damaged by oil starvation and may have to be replaced.
Lift operates “jerky” or “spongy”.
- Lower lift entirely and hold “Down” button an additional 10-30 seconds to bleed air from cylinder.
- Check for oil starvation in pump.
Lift lower too slowly with load.
- Down valve may require cleaning.
- Check for pinched tubing or hose.
- Oil extremely heavy for existing temperature.
Lift will not lower (electrical).
Solenoid coil may be incorrectly wired, not rated for the voltage, or the line voltage may be excessively low. Check voltage near coil. (120-volt) or (24V)
Lift raises, then lower back slowly.
- Down solenoid valve may not be seating. Remove solenoid coil and check again. If lift does not hold with solenoid coil removed, down valve cartridge should be removed and cleaned or replaced as necessary.
- Oil, line, hose or fitting may be leaking. Check and repair if necessary.
- “Check valve” in pump assembly may not be seating. This is indicated by the pump and motor turning backward on their own. Most of the time this condition is audible. Replace pump assembly.
What are the torque requirements for fittings?
Click on chart to enlarge.
MAINTENANCE
How often should I check the bushings?
Bushings should be inspected on a weekly basis. Please refer to our Hydraulic Scissor Lift Manual Maintenance Schedule for more information.
How do I check the oil on an internal power unit or an external power unit?
An external power unit has a sight glass and the oil level should be put where you can see the oil in the center of the sight glass. An internal power unit is more difficult, you will have to raise the lift, put the safety stops in place and then lower lift until it stops. At that time, remove cap and insert a clean rod to check oil level. You should have about 1” in the tank at this point. Do not fill the tank full when lift is raised as all the oil is in the cylinder and when you lower lift it will dump hydraulic fluid on the floor through the breather on the tank.
How often should I change the oil?
Once a year depending on usage. If it is a high cycle lift every 6 months.
SHIPPING
Where do your products ship from?
All of our equipment ships from our manufacturing facility in Alpena, Michigan.
What freight class do your products fall under?
Freight class is 70.
Do you have Hot Shot or expedited shipping options available?
Yes, we have many trucking options available. Contact sales for assistance.
Do the products ship without tarps?
No, all products must either ship in a van trailer or have tarps on when they leave our facility.
WARRANTY
What is your warranty?
Our warranty is 1 year (2080 hour of operation)from date of shipment. An additional 1 year (2080 hour of operation)may be purchased at additional cost, please inquire at time of quote. Please refer to our Manuals for warranty coverage.
