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INSTRUCTION MANUAL – AIR DRIVEN HYDRAULIC PUMPS:  

Model Series: AHP1120, AHP1120R, AHP1121, AHP1121R, AHP1122, AHP1122R, AHP1141, AHP1142,  

HAP21011, HAP21012, HAP21014, HAP21016, HAP21021, HAP21022, HAP21024, HAP21026, HAP21031, 

HAP21032, HAP21034, HAP21036, HAP21041, HAP21042, HAP21044, HAP21046,   

Hi-Force Limited – Prospect Way – Daventry – Northants NN11 8PL – United Kingdom 
Tel: +44(0) 1327 301000:  Fax: +44(0) 1327 706555: Website: www.hi-force.com  

 

 

 
 
 
 
 
 
 
 
 

NOTE: Spare parts sheets for these products are 
available from the Hi-Force website at: 

www.hi-force.com

 

or from your local regional Hi-Force Sales office 
or authorized local Hi-Force distributor. 
 
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Inspection of the product upon receipt: 

On  receipt  of  the  product,  visually  inspect  the 
item  for  any  evidence  of  shipping  damage. 
Please  note  shipping  damage  is  not  covered 
by warranty. If shipping damage is found notify 
the carrier immediately and refrain from putting 
the  product  into  service.  The  carrier  is 
responsible  for  repair  and  replacement  costs 
resulting from damage in transit shipment. 
 
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Safety Precautions: 

 

Read  and  follow  all  the  instructions and  safety 
warnings  carefully  prior  to  use  of  the 
equipment.  Failure  to  do  so  could  result  in 
equipment  damage  or  failure  of  the 
equipment  or  personal  injury.  Hi-Force  will  not 
be  held  responsible  for  any  damage  to  the 
equipment  or  personal  injury  resulting  from 
unsafe  use  of  the  product,  lack  of 
maintenance or incorrect operation. If in doubt 
on  the  correct  usage  of  any  Hi-Force 
equipment,  contact  your  nearest  Hi-Force 
office  or  distributor.  If  the  operator  has  not 
been  trained  on  high  pressure  hydraulic 
equipment  and  its  safe  use  consult  your  local 
Hi-Force sales office who can offer you training 
courses for operators. 

 

All  operators  should  ensure  that  all  necessary 
personal protective equipment as specified by 
their  employer  is  worn  when  operating  any 
hydraulic  equipment.  Safety  shoes,  safety 
glasses/  visor  and

 

protective  gloves  should  be 

worn  at  all  times.  All  relevant  risk  assessments 
should  be  completed  prior  to  use  of  the 
equipment

 

Warning:  All  ancillary  equipment  to  be 
used  with  these  ranges  of  hydraulic 

manual  pumps  MUST  be  rated  for  use  at  the 
same operating pressure as the pump model to 
be used:- 
Models AHP1120 up to and including AHP1142 – 
Max working Pressure - 700bar (10,000psi) 
Models  HAP21011  up  to  and  including 
HAP21046  –  Max  working  Pressure  -  700bar 
(10,000psi) 
 

Sufficient  time  should  be  allocated  to 
planning  your  hydraulic  system.  Make 

sure  that  all  the  components  are  fit  for  the 
intended use.  
 
          Ensure there is sufficient oil capacity in the 
pump reservoir to fully operate the system to be 
used. 
 

DO NOT exceed the rated pressure of the 
pump  or  the  rated  capacity  of  the 

system  to  be  used.  Under  no  circumstances 
ever tamper with the internal safety relief valve 
of the pump. 
 

Keep hydraulic pumps away from flames 
and direct heat.  

Hydraulic  pumps  must  only  be  serviced  by  a 
qualified technician.  
To  protect  your  warranty,  only  use  Hi-Force’s 
hydraulic oil. 
Immediately  replace  any  worn  or  damaged 
parts using genuine Hi-Force parts only.  
The system operating pressure must not exceed 
the pressure rating of the lowest component in 
the  system.  Where  possible,  use  a  pressure 
gauge to monitor the system.  
Avoid  damaging  hydraulic  hose.  Always  route 
hoses  to  ensure  that  they  are  free  from  sharp 
bends  and  kinks.  Using  a  bent  or  kinked  hose 
will  cause  severe  back-pressure  and  can  also 
lead to the failure of the hose.  

 

 

Never  lift  or  carry  any  hydraulic 
components  by  the  hose  or  hoses 
connected to them. 
Do  not  handle  a  pressurized  hydraulic 
hose. Oil escaping under pressure from a 

ruptured hose can penetrate the skin and lead 
to a serious medical emergency and in certain 
cases  death.  Should  this  incident  happen 
medical attention must be sought immediately.  

Summary of Contents for AHP1120 Series

Page 1: ...ent as specified by their employer is worn when operating any hydraulic equipment Safety shoes safety glasses visor and protective gloves should be worn at all times All relevant risk assessments should be completed prior to use of the equipment Warning All ancillary equipment to be used with these ranges of hydraulic manual pumps MUST be rated for use at the same operating pressure as the pump mo...

Page 2: ... 4 0 Safety Observe all the following safety rules They are of the maximum importance for your own safety and the safety of others In addition to the safety warnings in this section please also take note of all safety related issues in other sections of this manual DO NOT TAMPER WITH THE PROTECTIONS AND SAFETY DEVICES AND DO NOT MODIFY THE PUMP IN ANY WAY TO AVOID CREATING POTENTIALLY HAZARDOUS SI...

Page 3: ...ions AHP1120R AHP1121R AHP1122R Connect the hydraulic pressure hose to Port A Fig 14 The hose must be fitted with a 3 8 NPTF fitting after binding the thread with Teflon tape Unscrew the breather screw Fig 6 by three or four turns using an appropriate screwdriver 5 3 Connecting the compressed air line Select a quick coupler that is compatible with the air line supply and connect it to the air inle...

Page 4: ...s The pump should now work correctly If you still have problems repeat the above mentioned procedure 6 3 AHP1120R AHP1121R AHP1122R Hand Pendant Operation The AHP pump is extremely simple to use To activate the pump press the button marked PUMP on the hand pendant Fig 16 The pump will start to deliver pressurized oil and thereby cause the connected cylinder to advance When the button is released t...

Page 5: ... down or if necessary to the partially inserted breather position 7 5 Troubleshooting The chart below describes the possible issues that could occur during operation of the pump together with an indication of the appropriate corrective action If the prescribed action fails to solve the problem contact the manufacturer PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION Pump cannot be started Compressed air l...

Page 6: ...ition For example simple lifting operations HAP21041 HAP21042 HAP31044 HAP21046 4 way valve for operating double acting cylinders requiring advance retract and central load hold position For example lifting and positioning requiring more control 9 0 Safety FAILURE TO OBSERVE THE FOLLOWING WARNINGS COULD RESULT IN SERIOUS BODILY INJURY Ensure that all equipment connected to the pump is in good cond...

Page 7: ...P21046 Where valves are remotely mounted ensure these are adjusted such that pressure will not build up during the starting operation 11 1 Operation of the Pump Hi Force does not necessarily know what equipment this pump will power Read and understand the appropriate operating instructions relating to the equipment in use 1 With all hydraulic connections made and air motor running operate the dire...

Page 8: ...22 HAP21024 HAP21026 HAP21031 HAP21032 HAP21034 HAP21036 HAP21041 HAP21042 HAP21044 HAP21046 Hi Force Limited Prospect Way Daventry Northants NN11 8PL United Kingdom Tel 44 0 1327 301000 Fax 44 0 1327 706555 Website www hi force com Change the oil every 500 working hours always only use Hi Force HFO46 oil Have the pump serviced regularly by a Hi Force authorised repair centre ...

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