Hi-Force HPX2800 Petunjuk Pengoperasian

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Halaman Cetak

Prepared by:-

M.Davies

REV NO:-

ECO:-

4162

INTRODUCTION

The operating and maintenance procedures listed within this manual should be adhered to and

will enable the operator to obtain maximum efficiency and reliability from the equipment.

PRECAUTIONS

Prior to connecting the hydraulic pump to any equipment, the user is to ensure that:-

 The working pressure of the hydraulic pump and the equipment to be operated are

compatible.

 The reservoir pump capacity is adequate to operate the equipment throughout its range.

 The hydraulic oil specifications used within the pump and the equipment are compatible.

TECHNICAL SPECIFICATION

Working Pressure Bar 2800

Total Oil Capacity cm

1800

Effective Oil Capacity cm

Displacement/Pump stroke, Low-press cm

Displacement/Pump stroke, High-press cm

Pumping Effort, N 370

Weight, Kg 6.5

RECOMMENDED OIL

Hydraulic oil, viscosity class ISO 10

PRIOR TO USE

Operate the handle with the hand wheel item (32) open this will assist in bleeding the pump of

any air in the system.

During test and operation of the pump it is recommended that a length of hose either connected

to a tool or terminated with a coupling and blanking plug is connected to the pump.

This assists in moving a reasonable quantity of oil from the pump prior to pressurising and

prevents air from gathering and being trapped in the system.

OPERATION OF THE PUMP

Rotate the hand wheel (32) clockwise until it seats, then raise the pump handle.

The low pressure piston is withdrawn. The stationary high pressure piston mounted in the valve

body is simultaneously withdrawn from the hollow low pressure piston. The vacuum that is then

created both in the low pressure piston's pump bore and inside the piston causes oil to be

sucked from the oil container via a passage, past the two intake balls and into each other, the

intake balls close and the oil from both the high and low pressure piston is forced past the

discharge ball and out into the discharge connection.

When the load on the pump increases to around 20-30 bar, a valve opens a passage between

the low pressure pump piston's pump bore and the oil container. The low pressure function is

now disengaged. Only the high pressure piston is working.

The safety valve opens a passage between the high pressure piston and the oil container when

the load reaches maximum working pressure.

HPX2800 Hand Pump

OPERATING INSTRUCTIONS

Hand Pump 2800 Bar

1200

0.8

Page 1 of 5

Approved by:-

TDS:-

1395

Date:

12/03/2014