Hi-Force HAP21016 Series Buku Petunjuk - Halaman 6

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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,

PROBLEM

POSSIBLE CAUSE

Pump cannot be

Compressed air line closed or

started

clogged

I nsufficient air pressure

Pump stops w orking

under load

Air filter dirty or clogged

Oil leak in the main hydraulic

circuit.

Pump operates but

Pump internal leak

no pressurizes oil is

deliv ered

Low oil lev el

I nsufficient air pressure

I nternal relief v alv e incorrectly

Pump fails to reach

set.

maximum pressure

Oil leak in the main hydraulic

circuit

Excess load

Pump deliv ers

pressurized oil but

Oil circulation fault

load is not lifting

Oil leak in the main hydraulic

Piston retracts

circuit

although treadle is

not pressed on

RELEASE side

Pump internal fault

Oil pressure line obstructed or

coupling incorrectly connected

I f piston is designed to return

under grav ity, ensure load is

Piston fails to perform

sufficient

retract stroke (single

acting cylinder)

Cylinder spring broken

Cylinder release v alv e not

w orking

Oil pressure line obstructed or

coupling incorrectly connected

Piston fails to perform

retract stroke (single

Cylinder release v alv e not

acting cylinder)

w orking

I nsufficient air pressure.

Pump

flow

rate

Air filter dirty or clogged.

insufficient

Reserv oir breather plug or

screw not opened

8.0 Description HAP series of Air Driven Pumps

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

Hi-Force HAP series pumps are designed to

CORRECTIV

Check compress

operate high pressure hydraulic cylinders and

pump

tools with a maximum working pressure of 700

Check compress

bar. These instructions cover all HAP2-3 series

pump is betw een

models. Refer to nameplate on pump for

Clean or Renew

model identification.

Check the circuit

repair as necessa

Common models and uses are given below:

Check for leaks a

MODEL

pump to manufac

HAP21011

repair

Check lev el and

HAP21012

necessary

HAP21014

HAP21016

Check compress

pump is betw een

Contact the man

HAP21021

HAP21022

Check for oil leak

HAP21024

manufacturer

HAP21026

Reduce

Check if pipeline

obstructed or if c

HAP21031

w orking correctly

HAP21032

Check the circuit

repair as necessa

HAP21034

HAP21036

Check for leaks a

manufacturer

HAP21041

Check oil pressur

HAP21042

HAP31044

HAP21046

I ncrease load on

Repair

Repair cylinder

9.0 Safety:

FAILURE TO OBSERVE THE FOLLOWING

WARNINGS COULD RESULT IN SERIOUS BODILY

Check oil pressur

INJURY.

Ensure that all equipment connected

●

Repair cylinder

to the pump is in good condition and is

all rated for 700 bar operating pressure.

Check compress

Always stand the pump on a stable

●

pump is betw een

level surface during operation.

Clean or Renew.

Never invert the pump or lay it on its

●

side either in use, transport or in

Open breather P

storage.

described in sect

Inspect hoses regularly for damage

●

and wear. Do not use hoses that are

frayed, abraded or leaking.

Never move the pump by pulling the

●

hoses.

Do not work with hoses sharply bent or

●

kinked.

Do not handle hoses that are

●

pressurised. Oil escaping under

pressure can penetrate the skin

causing serious injury. If oil is injected

HYDRAULIC CONNECTIONS

No control valve fitted.

Pump (P) and tank (T)

connections for single and

double acting cylinders

controlled by remote mounted

valves.

2 way valve for operating single

acting cylinders and tools

requiring advance and retract

but no "hold" function. For

example crimpers and cutters.

3 way valve for operating single

acting cylinders requiring

advance, retract and central

load hold position. For example

simple lifting operations

4 way valve for operating double

acting cylinders requiring

advance, retract and central

load hold position. For example

lifting and positioning requiring

more control.