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3. OPERATING,INSTRUCTIONS 

3.1 Connect the hydraulic ram, hose and pump unit together, ensure that you have securely fastened the couplers    
       before pumping. 

Warning:

 Inspect before each use. Do not use if bent, broken, leaking, damaged components or any suspect parts are 

noted and/or it has been subjected to a shock load 
3.2 Open the breather valve (P09). 
3.3 Firmly close the release valve (P15) by turning it clockwise. 
3.4 Adjust the ram slowly to make the load coaxial with the ram.   

NOTE:

 The pump can be used in any position from horizontal to vertical. Always keep the hose end of the pump 

downward when it is not horizontal. 
3.5 Pump the handle (P39) up and down to supply pressure. 

  

3.6 When work is done, 

SLOWLY

 and 

CAREFULLY 

turn the release valve counterclockwise (never more than one   

      turn) to release the pressure until ram retracts to desired position. 
3.7 Close the breather valve. 
 

4. MAINTENANCE 

4.1 When not in use, store the equipment in a dry location with the pump piston (P34) and the ram fully retracted. 
4.2 Periodically check the ram and pump piston for signs of rust or corrosion. Clean exposed areas with a clean oiled   
      cloth. 

Warning:

 Never use sandpaper or abrasive material on these surfaces! 

4.3 A coating of light lubricating oil to pivot points, axles and hinges will help to prevent rust and assure that pump  
      assemblies move freely. Periodically lubricate the pivot points, axles and hinges with a light lubricating oil as   
      needed. 
4.4 With ram fully lowered, set pump unit in its normal, level position. Remove the oil filler screw (P07) to check the  
      hydraulic oil level. If it is not adequate add high quality hydraulic jack oil as necessary. 

Warning:

 

DO NOT

 use brake fluid or any other improper fluid and avoid mixing different types of oil when adding 

hydraulic oil. 
4.5 To ensure best performance and longer equipment life, replace the complete hydraulic oil at least once a year. With  
      ram fully lowered, remove the oil filler screw (P07) and drain the oil into a suitable container. Ensure that no dirt   
      gets into the system. Set the pump in its normal level position, fill with approved hydraulic jack oil, then replace the     
      oil filler screw (P07). 

Note:

 Dispose of hydraulic oil in accordance with local regulations. 

4.6 When equipment efficiency drops, purge away air from hydraulic system: Tum the release valve counterclockwise  
      by 1-1/2 tums, with ram fully retracted and release valve open, pump the handle rapidly for 10-20 times. 
4.7 It is recommended that an annual inspection be done by qualified technicians. 
 

5. TROUBLESHOOTING 

Symptom 

Possible Causes 

Corrective Action 

Ram won't lift load 

Release valve not tightly closed 
Overload condition 
Air trapped in system 

Firmly close release valve 
Remedy overload condition 
Purge away air from system 

Ram won't maintain load 

Release valve not tightly closed 
Hydraulic unit malfunction 

Firmly close release valve  
Replace ram and/or pump 

Ram won't lower after unloading 

Reservoir overfilled  
Linkages binding 

Drain oil to proper level 
Clean & lubricate moving parts 

Ram won

’t extend to full stroke 

Oil level low 

Add hydraulic oil 

Poor performance 

Oil level low 
Air trapped in system 

Add hydraulic oil 
Purge away air from system 

 

                                         1-800-345-4545   jegs.com

 

Summary of Contents for 81532

Page 1: ...ghting 1 10 When using this equipment open the breather valve P09 Close it when not in use 1 11 DO NOT allow the piston rod R03 of ram to extend so far as to exceed the maximum ram stroke 1 12 When coupler valves are disconnected always use dust cap to keep the hydraulic system clean 1 13 DO NOT drop any heavy objects onto the hose and DO NOT twist the hose Always keep the hose clean to avoid dama...

Page 2: ...position Remove the oil filler screw P07 to check the hydraulic oil level If it is not adequate add high quality hydraulic jack oil as necessary Warning DO NOT use brake fluid or any other improper fluid and avoid mixing different types of oil when adding hydraulic oil 4 5 To ensure best performance and longer equipment life replace the complete hydraulic oil at least once a year With ram fully lo...

Page 3: ...1 R04 Circlip 1 P17 Coupler 1 R05 Bushing 1 P18 Hose dust cover 1 R06 Nylon ring 1 P19 Ball 1 R07 Sealing ring 1 P20 Ball cap 1 R08 Circlip 1 P21 Spring 1 R09 Nut 1 P22 Screw 1 R10 Spring 1 P23 O ring 1 R11 Screw 1 P24 Screw 1 R12 Protection cap 1 P25 Screw protector 1 R13 Ring for ram 1 P26 Screw 1 R14 Cylinder 1 P27 Nylon ring 1 R15 Screw 1 P28 Sealing ring 1 S1 Pin 1 P29 O ring 1 S2 Circlip 2 P...

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Page 6: ...R01 R12 R02 R09 R13 R03 R10 R04 R11 R05 R06 R14 R07 R15 R08 S10 S11 P11 S12 S12 S4 P11 S11 S10 S2 S9 S8 S1 S7 S6 S3 S2 S5 1 800 345 4545 jegs com ...

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