Jack FAQs

Click on the images below for more information.

1 - FAQ: Check Ball Operation (Pump Valve) Click to enlarge	2 - FAQ: Check Ball Valve Seats Click to enlarge
3 - FAQs: Yasui-Style Release Valve Breakdown Click to enlarge	4 - FAQs: Floor Jack Block Click to enlarge
5 - FAQ: Quick-Lift Valve Operation Click to enlarge	6 - FAQ: Floor Jack Operating Principles Click to enlarge
7 - FAQ: Exploded View for Aluminum Floor Jack Click to enlarge	8 - FAQ: Quick Lift Floor Jack w/ Single Pump Piston Click to enlarge
9 - FAQ: Quick Lift Floor Jack w/ Double Pump Piston Click to enlarge	10 - FAQ: Floor Jack w/ Gear-Type Release Valve Click to enlarge
11 - FAQ: Quick Lift Jack w/ Gear-Type Release Valve Click to enlarge	12 - FAQ: Yasui-Style Jack w/ Gear-Type Release Valve Click to enlarge
13 - FAQ: 328 Series Look-Alikes Click to enlarge	14 - FAQ: Long Chassis 5 and 10 Ton Floor Jacks Click to enlarge
15 - FAQ: Craftsman 328 Series Oil Reservoir Click to enlarge	16 - FAQ: Lincoln/HW Old vs. New Pump Differences Click to enlarge
17 - FAQ: Relief Bypass System for Import Jacks Click to enlarge	18 - FAQ: Ram/Cylinder Identification Click to enlarge
19 - FAQ: Ram/Cylinder Identification - Enerpac Click to enlarge	20 - FAQ: Identify 30° vs. 90° Pistons Click to enlarge
21 - FAQ: V-Packing or U-Cup Click to enlarge	22 - FAQ: Oil Seal or Wiper? Click to enlarge
23 - FAQ: U-Seal Direction for Cylinder and Floor Jack Click to enlarge	24 - FAQ: Understanding Hydraulic Cylinders Ram Pressure Click to enlarge
25 - FAQ: Pump Pistons - Jointed vs. Non-Jointed Click to enlarge	26 - FAQ: Craftsman Model Number Location Click to enlarge