AIR HYDRAULIC JACK USER`S MANUAL MODEL 820B
Contents
1. ACKCO MODEL 820B AIR HYDRAULIC JACK 20TON CAPACITY USER S MANUAL Jackco Transna tional Inc 2012 South El Monte CA 888 452 2526 www jackco com FOR YOUR SAFETY Read all instructions warnings and cautions carefully Follow all safety precautions to avoid personal injury or property damage during system operation Jackco cannot be responsible for damage or injury resulting from unsafe product use lack of maintenance or incorrect product and or system operation Contact Jackco when in doubt as to the safety precautions and operations Failure to comply with the following cautions and warnings could cause equipment damage and personal injury e Stay clear of loads supported by hydraulics A cylinder when used as a load lifting device should never be used as a load holding device After the load had been raised or lowered it must always be blocked mechanically e Do not exceed equipment rating never attempt to lift a load weighing more than the capacity of the cylinder Overloading causes equipment failure and possible personal injury The cylinders are designed for a maximum pressure of 10 000 psi Do not connect a jack or cylinder to a pump with a higher pressure rating e The system operating pressure must not exceed the pressure rating of the lowest rated component in the system Install pressure gauges in the system to monitor operating pressure It is your window to what is happening in the system2. 6 3 6 5 ape ape AGA En GA EN 6 20 MEN 6 21 gt on 55 lt 2 5 3 9 s a PSS ISIE e lt iS ope 2lo S ol o O O TH ol O lease an 2 5 S 6 Oo c gt CIO ol SEIS O 5 gt 2 2 M4 094 lo Perri Ea 5 5 P 2 x 2 a o fe es 0 Glo c io 5 S an lt r ir cla o 10 rata le LL Aaa O Q O Oo I 2 I lo In lo lo e In I I I I I y I I tT sis s st fg q x x Ar 111 1161 Copper Washer 4 ___________ No EN afa Spring Nut Rod Joint B 1 ps Pin 1 yee Pin o E ape MZ ap EE EA ap ME ape ape apa a 1 5 10 2 gt O 3 Sao EE is raf O O O O 3 Sl lAl Cl l5 M cim c ES gt 00 E eclolo 3 2 5 8 8 5 5 Ao 5 5 5 a a Pa aa 8 JS DEAR 5 5 le gn 0 wz 1 i i cm fe r jeja Joy foo ala fou eu feu fo o x NIN 1 36 Copper Washer 1 55 Bolt Handle Socket 1 3 7 1 515 Sealing Washer 1 512 2 6 Piston RodAss y 1 3 16 Release Valve Rod 1 512 Sealing Washer 4 5 10 1 a No 2 12121 Oil Filler Plug 2 243 Cylinder Ass apa afa EEES 1 38 KIEJ EEES apar 1 3 18 Universal Joint NEO i apa 14 Spr
3. Bleeding the Jack Air bubbles can become trapped inside the hydraulic system reducing the efficiency of the jack Purge air from the system as needed by following steps 1 With the jack sitting on its base and the ram retracted bleed air by opening the release valve 2 Pump for 10 seconds Pump Prime Instructions The air hydraulic pump may lose its prime during shipment or after long periods without use To prime the pump follow these steps 1 Remove the upper cover Hex Release 2 Loosen the hex socket bolt one half turn Socket Valve See Figure 1 3 Close the release valve 4 Operate the air pump while repeatedly tightening and loosening the bolt 5 When the piston begins to rise tighten the bolt Verify that the piston can rise to the maximum height position Figure 1 al ISI SHed 8 IPPOW ES 0 o Le 0 gt O Q 20 W O 5 c SOS cele anA O 84 6 Ss E D 5 z l z3 0 5 0 s DASS IL d D Do 5 2 E CIS 5 xl E E M A ool Pp Ol HE O OB LYE GI 9 MO E DIOL DAA a S dizi dig MEE SAO ao 0 ci ola IO ol gizo ool Sl rO xO g 5 0 gt Ae YO gt ZQ og O Mz lt lt O As lo qe ls 1s le l fe le le le fx fe fe fs ale ls ls le in Z E lo o lo o lo lo o
4. protect your warranty use only JACKCO hydraulic oil Specifications Lifting Capacity Lifting Height Min Height Max Height Shipping Weight Working Pressure Inspection Prior to each use visually inspect for leaking hydraulic oil damaged loose or missing parts If jack is worn or damaged remove from service and contact your equipment dealer service center for repair Maintanence Check oil level With the jack in an upright position and the ram completely retracted open the release valve turn counter clockwise and remove the filler plug The oil level should be just up to the hole Fill if necessary with clean hydraulic jack oil Lubricate internal components With the release valve open manually pump the handle several times Keep the jack clean Occasionally lubricate the handle socket pivot point extension screw release screw thread and air valve to prevent corrosion Noted The safety valve is not allowed to be adjusted Operation 1 Tightly close the release valve knob located on top of the T handle by turning it clockwise 2 Center the load on the jack saddle Connect the air supply and squeeze the air valve lever to raise the load Release the air valve lever to stop movement 3 Transfer the load to support stands 4 To lower the jack open the release valve knob by SLOWLY turning it counterclockwise NOTE To adjust the handle pull up and then release the lever to lock it in one of three positions
5. running pump for 10 seconds 5 Pump lost its prime 4 Use correct equipment 5 Follow Pump Prime Instructions Ram only extends partially 1 Low oil level in reservoir 1 Fill reservoir with oil 8 bleed system 2 Piston rod is binding 2 Look for dirt gummy deposits leaks misalignment worn parts or defective packing Ram advances slowly 1 Low air pressure 1 Adjust air pressure to 90 145 psi 2 Pump not working 2 Rework pump correctly 3 Replace seals 3 Leaking seals Ram advances but doesn t 1 Release valve is open 1 Close release valve located on top of T handle hold pressure 2 Ram seals are leaking 2 Replace seals 3 Pump c heck valve not 3 Clean replace check valve working 4 Replace adjust overload valve 4 Overload valve leaking or not adjusted Jack leaks oil 1 Worn or damaged seals 1 Replace seals Ram will not retract or 1 Release valve is closed 1 Open release valve retracts slowly 2 Reservoir too full 2 Drain oil to correct level 3 Ram damaged internally 3 Take jack to authorized service center for repair LIMITED ONE YEAR WARRANTY Jackco Transnational Inc warrants all Jackco equipment and tools to the original purchaser against any manufacturing defect in material or workmanship for a period of one 1 year from the original date of purchase If the defective equipment or tool is determined to be covered under this warranty it shall be repaired or replaced at manufa
6. e BE SURE SETUP IS STABLE BEFORE LIFTING LOAD Cylinders should be placed on a flat surface that can support the load Where applicable use a cylinder base for added Stability Do not weld or otherwise modify the cylinder to attach a base or other support e Avoid situations where loads are not directly centered on the cylinder plunger Off center loads produce considerable strain on cylinders and plungers In addition the load may slip or fall causing potentially dangerous results Immediately replace worn or damaged parts genuine JACKCO parts Standard grade parts will break causing personal injury and property damage JACKCO parts are designed to fit properly and withstand high loads e To avoid personal injury keep hands and feet away from cylinder and work piece during operation e NEVER set the relief valve to a higher pressure than the maximum rated pressure of the pump Higher settings may result in equipment damage and or personal injury Do no remove relief valve Keep hydraulic equipment away from flames and heat Excessive heat will soften packing and seals resulting in fluid leaks Heat also weakens hose materials and packings For optimum performance do not expose equipment to temperatures of 150 F or higher Protect hoses and cylinders from weld spatter Hydraulic equipment must only be serviced by a qualified hydraulic technician For repair service contact your equipment dealer service center To
7. cturer s discretion without charge provided that the equipment or tool must be returned with proof of purchase to the dealer and freight prepaid if returned to the manufacturer This warranty shall not apply to damage due to accident negligent use and lack of maintenance abuse or applications other than the specific function the equipment or tool is designed for No other warranties expressed or implied including those of merchantability or fitness for particular purpose shall be applicable to Jackco except as specifically stated herein In no event shall Jackco be liable to any party for any special direct indirect consequential punitive damage of any nature caused by the sale or use of the equipment or tool Note This warranty gives the original purchaser specific legal rights which may very from state to state Jackco Transnational Inc O 2012 South El Monte CA 888 452 2526 www jackco com
8. ing Hanger 1 311 EEGA iS O ka oO O O Cc o oD ran 0 O Cy wu cE T 0 Q Q Q j N 09 C O C TAREE OC lt ll Cl lt c 0o x 0 0 M c o SO olol O MH OJ 9 2 ae ar O a Lia olol Ilo WS ls SD Olas a S O S a C O O cia mM 9 we O S ajo A mM 9 g NIN NIN IN Eo o O IN 5 N co Y gt MPA le En En En En EN El 3 4 El O o fo 2 NIN IN la la Trouble Shooting Problem Solution Erratic Action Air in system 1 With jack sitting on its base and ram retracted bleed air Viscosity of oil too high by opening release valve Pump for 10 seconds Ram sticking or binding 2 Change to a lower viscosity oil Internal leakage in ram 3 Look for dirt gummy deposits leaks misalignment worn parts or defective packing 4 Replace worn packings Look for excessive contamination or wear Ram does not advance Release valve is open 1 Close release valve located on top of 1 2 Low no oil in reservoir T handle 3 Air locked system 2 Fill with oil amp bleed system 4 Load is above capacity of 3 With jack sitting on its base and ram retracted bleed air system by opening release valve
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