Hi-Force HPX2800 User manual

HPX2800 Hand Pump
OPERATING INSTRUCTIONS
TDS:
-
1395
Prepared by:- M.Davies Approved by:- Date:
REV NO:- 1 12/03/2014
ECO:- 4162
Page 1of 5
Hand Pump 2800 Bar
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 cm3 1800
Effective Oil Capacity cm3 1200
Displacement/Pump stroke, Low-press cm3 20
Displacement/Pump stroke, High-press cm3 0.8
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The low pressure piston is withdrawn.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body is simultaneously withdrawn from the hollow low pressure piston.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
TDS:
-
1395
Prepared by:- M.Davies Approved by:- Date:
REV NO:- 1 12/03/2014
ECO:- 4162
Page 2of 5
When the hand wheel (32) is turned anti-clockwise, a passage is opened between the discharge
connection and the oil container allowing the pressure to be released.
OIL LEVEL
Place the pump on a horizontal surface, remove filler cap (45) from the oil tank. Fill-up with the
recommended grade of oil until the level is approx. 20mm from the bottom of the filler hole.
BLEEDING
Place the pump on a bench or similar, with the pump head slightly inclined downwards and the
ram on the floor standing on its pressure head. Pump up to approx. half its stroke and leave to
stand for a few minutes. Allow the ram to retract very slowly. Repeat this operation a few times
until all the oil has been bled from the system. In order to bleed the pump system separately,
pump with the hand wheel (no. 32) fully open.
FAULT DIAGNOSIS
FULL PRESSURE CANNOT BE REACHED:
Discharge or intake balls do not seal tightly
Remove the gauge so that the balls (9, 11 and 13) are accessible. Minor damage to the ball
seats can be remedied by tapping the ball home with a light hammer blow.
IMPORTANT! Use a punch made of soft material that will not damage the ball.
Impurities in the oil
Disassemble and clean the pump.
Relief valve incorrectly adjusted
Remove reservoir (44) to adjust the relief valve (36). Clockwise to increase pressure. Anti-
clockwise to decrease pressure. Do not attempt to test the relief valve outside of the
reservoir
Release not tightened or ball damaged
Check Hand wheel (32) is tight. Check screw (31) if damaged replace.
Oil level low
Top up following above instructions.
Air in pump
Bleed the pump following the instructions above.
PUMP LEAKING OIL
Clean the pump. Locate any visible leakage
Check:-
1. That all screws are securely tightened
2. That the seals are intact.
3. That the sealing surfaces on the seals are undamaged.
4. That any damage, such as cracks, deformations and dirt particle are removed
CAUTION: Make certain that all those using the equipment have the necessary training.

HPX2800 Hand Pump
OPERATING INSTRUCTIONS
TDS:
-
1395
Prepared by:- M.Davies Approved by:- Date:
REV NO:- 1 12/03/2014
ECO:- 4162
Page 3of 5
1 Handle 1
2Grip 1
3Track ring 4
4Axle 2
5Gauge 1
6Screw 3
7O-ring 1
8Spring 1
9Ball 1
11 Ball 1
13 Ball 1
14
P
l
u
g
2
15 Packing 2
16 Washer 1
17 Piston 1
18 O-ring 1
19 Support ring 1
20 Wiper 1
21 O-ring 1
22 Piston 1
23 Housing 1
24
O
-
r
i
n
g
1
25 Piston 1
26
S
pr
i
n
g
1
27 Packing 1
28 Plug 1
29 Screw 1
30 O-ring 1
31 Release screw 1
32 Hand wheel 1
33 Screw 1
34 Ball 1
35 Plug 1
36
R
e
li
e
f
valve
1
37 Suction pipe 1
38 Filter 1
39 O-ring 1
40 Mesh 1
42 Ball 1
43 Rod 1
44 Oil tank 1
45 Plug 1
46 Packing 1
49 Yoke 1
50 Packing 1
51
N
u
t
1

HPX2800 Hand Pump
OPERATING INSTRUCTIONS
TDS:-
1395
Prepared by:- M.Davies Approved by:- Date:
REV NO:- 1 12/03/2014
ECO:- 4162
Page 4of 5
UK Head Office:
Hi-Force Limited
Prospect Way
Daventry
Northamptonshire
NN11 8PL
United Kingdom
Tel: + 44 1327 301000
Fax: + 44 1327 706555
Email: [e-mail]

HPX2800 Hand Pump
OPERATING INSTRUCTIONS
TDS:
-
1395
Prepared by:- M.Davies Approved by:- Date:
REV NO:- 1 12/03/2014
ECO:- 4162
Page 5of 5
Hi-Force Regional Offices:
Hi-Force Australia Pty. Ltd
Rockingham
Australia
Tel: [phone]
Email: [e-mail]
Hi-Force Caspian
Baku
Azerbaijan
Tel: [phone]
Email: [e-mail]
Hi-Force Hydraulics (Asia) S.B
Selangor
Malaysia
Tel: [phone]
Email: [e-mail]
Hi-Force Nederland BV
Strijen
Netherlands
Tel: [phone]
Email: [e-mail]
Hi-
Force Hydraulics (Pty) Ltd
Midrand
South Africa
Tel: [phone]
Email: south.africa@hi-
force.com
Hi-Force FZC
O
Dubai
United Arab Emirates
Tel: [phone]
Email: [e-mail]
Hi-
Force Hydraulics
Abu Dhabi
United Arab Emirates
Tel: [phone]
Email: abu.dhabi@hi-
force.com
Hi-Force Hydraulic
Equipment (Shanghai) Ltd.
Co. Shanghai, China
Tel: [phone]
Email: [e-mail]
GLOBAL BRAND. LOCAL
www.hi
-
force.com