Enerpac EQUALIZER HP350SMINEX Assembly instructions

HP350SMINEX
HP350DMINEX
HP550SMINEX
HP550DMINEX
HP1000SMINEX
HP1000DMINEX
HYDRAULIC
SEALED HAND
PUMPS
OPERATOR INSTRUCTION MANUAL
EQUALIZER INTERNATIONAL LTD
www.equalizerinternational.com

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
1
CONTENTS
1. INTRODUCTION
2. TOOL SAFETY
2.1 GENERAL SAFETY
2.2 PERSONNEL COMPETENCY
2.3 DISCLAIMER
2.4 DEFINITION OF TERMS
2.5 HAZARDS
3. GENERAL HAND PUMP OPERATION
3.1 GENERAL GUIDANCE
3.2 HP350SMINEX, HP550SMINEX &
HP1000SMINEX INSTALLATION & OPERATION
3.3 HP350DMINEX, HP550DMINEX &
HP1000DMINEX INSTALLATION & OPERATION
4. HAND PUMP MAINTENANCE
4.1 INSPECTION
4.2 CLEANING
4.3 MAINTENANCE
4.4 STORAGE & TRANSPORTATION
4.5 SUB-SEA USAGE
4.6 LONG-TERM STORAGE - MAINTENANCE PLAN
5. TECHNICAL SPECIFICATIONS
5.1 TECHNICAL DATA
5.2 KIT CONTENTS
5.3 HP350SMINEX, HP550SMINEX &
HP1000SMINEX WEIGHTS AND DIMENSIONS
5.4 HP350DMINEX, HP550DMINEX &
HP1000DMINEX WEIGHTS AND DIMENSIONS
6. TROUBLESHOOTING
6.1 HP350SMINEX/HP550SMINEX/HP1000SMINEX
HP350DMINEX/HP550DMINEX/
HP1000DMINEX TROUBLESHOOTING
7. REGULATORY INFORMATION
7.1 REGISTERED HEAD OFFICE
7.2 APPLICABLE ATEX STANDARDS
8. PARTS LISTS & SERVICE KITS
15/02/2021

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
2
1.
INTRODUCTION
The Equalizer™ HP-S hydraulic single-port sealed hand
pump and HP-D hydraulic twin-port sealed hand pump
replace the Equalizer P142 hydraulic hand pump.
The HP350SMINEX, HP550SMINEX, HP1000SMINEX and
HP350DMINEX, HP550DMINEX and HP1000DMINEX
are tailored for use with Equalizer International Ltd
hydraulic equipment. Their output is regulated to 700 bar
(10 000psi) and is delivered from an output port threaded
⅝” NPT.
The HP350SMINEX and HP350DMINEX can be used with
any 700 bar (10 000 psi) rated hydraulic equipment with
an oil capacity of 350 cc (21.4 in3) or less.
The HP550SMINEX and HP550DMINEX can be used with
any 700 bar (10 000 psi) rated hydraulic equipment with
an oil capacity of 550 cc (33.6 in3) or less.
The HP1000SMINEX and HP1000DMINEX can be used
with any 700 bar (10 000 psi) rated hydraulic equipment
with an oil capacity of 1000 cc (61.0 in3) or less.
The diaphragm oil reservoir means that, unlike
conventional hand pump units, the HP-S and HP-D pump
ranges are operable at all angles and are highly resistant
to accidental spillage of hydraulic uid.
PRESSURE RATING:
● 1st stage: 13.8 bar (197 psi)
● 2nd stage: 700 bar (10 000 psi)
The tools can be used in potentially explosive atmospheres
and conform with the EU directive 2014/34/EU.
This manual contains information for the following tools:
• HP350SMINEX hydraulic single-port sealed hand
pump, marked ll 2G Ex h llB T5 Gb, ll 2D Ex h lllC
T100˚C Db, -5˚C ≤ Ta ≤ 40˚C
• HP350DMINEX hydraulic twin-port sealed hand pump,
marked ll 2G Ex h llB T5 Gb, ll 2D Ex h lllC T100˚C
Db, -5˚C ≤ Ta ≤ 40˚C
• HP550SMINEX hydraulic single-port sealed hand
pump, marked ll 2G Ex h llB T5 Gb, ll 2D Ex h lllC
T100˚C Db, -5˚C ≤ Ta ≤ 40˚C
• HP550DMINEX hydraulic twin-port sealed hand pump,
marked ll 2G Ex h llB T5 Gb, ll 2D Ex h lllC T100˚C
Db, -5˚C ≤ Ta ≤ 40˚C
• HP1000SMINEX hydraulic single-port sealed hand
pump, marked ll 2G Ex h llB T5 Gb, ll 2D Ex h lllC
T100˚C Db, -5˚C ≤ Ta ≤ 40˚C
• HP1000DMINEX hydraulic twin-port sealed hand
pump, marked ll 2G Ex h llB T5 Gb, ll 2D Ex h lllC
T100˚C Db, -5˚C ≤ Ta ≤ 40˚C
The units are designed for use in areas where explosion
hazard zones 1 or 21 occur and meet the requirements
for equipment group ll category 2G and 2D (EPL Gb and
Db). As required for category 2 equipment, all possible
sources of ignition have been assessed that may occur
during normal operation and possible malfunction.
Gases and vapours of Group llB ammable liquids -
ethylene group, temperature class T5. Group lllC dust with
a ash point of dust layer T90˚C.
These tools have been designed and manufactured in
accordance with the following transposed harmonised
Europeran standards:
• EN 1127-1:2011 Explosive atmospheres. Explosion
prevention and protection. Basic concepts and
methodology;
• EN ISO 80079-36:2016 Explosive atmospheres –
Part 36: Non-electrical equipment for explosive
atmospheres – Basic method and requirements
• EN ISO 80079-37:2016 Explosive atmospheres –
Part 37: Non-electrical equipment for explosive
atmospheres – Non-electrical type of protection
constructional safety “c”, control of ignition sources
“b”, liquid immersion “k”

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
3
2.
TOOL SAFETY
2.1
GENERAL SAFETY
These instructions cover the safe operation and
maintenance of THE EQUALIZER HP350SMINEX,
HP550SMINEX, HP1000SMINEX, HP350DMINEX,
HP550DMINEX and HP1000DMINEX HYDRAULIC
SEALED HAND PUMPS. The use of these tools should be
as part of a broader task-based risk assessment, which
should be carried out by the operation supervisor or other
competent person.
Failure to comply with the safety information contained
within this manual could result in personal injury or
equipment damage. Read all instructions, warnings and
cautions carefully, and follow all safety precautions.
The safety of the operator, any assisting personnel and
the general public is of paramount importance. Always
work in accordance with applicable national, local, site &
company-wide safety procedures.
2.2
PERSONNEL COMPETENCY
Only personnel deemed competent in the use of mechanical
and hydraulic equipment should use these tools.
2.3
DISCLAIMER
Equalizer cannot be held responsible for injury or damage
resulting from unsafe product use, lack of maintenance
or incorrect product and/or system operation. If in doubt
as to the safety precautions and applications, contact
Equalizer using the contact details at the back of this
manual.

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
4
WARNING: Applying pressure to a damaged
hose may cause it to rupture.
WARNING: Immediately replace worn or
damaged parts with genuine Equalizer parts.
Equalizer parts are designed to t properly and
withstand rated loads. For repair or maintenance
service contact your Equalizer distributor or
service centre.
WARNING: Periodic inspections and maintenance
of ATEX certied equipment are essential in order
to comply with legal requirements and avoid
unsafe operation.
WARNING: Repairs and reconditioning of these
tools may only be carried out by Equalizer or an
approved distributor or service centre.
DANGER: To avoid personal injury keep hands
and feet away from the tool and workpiece during
operation.
WARNING: Always wear suitable clothing and
Personal Protective Equipment (PPE).
DANGER: Do not handle pressurised hoses.
Escaping oil under pressure can penetrate the
skin, causing serious injury. If oil is injected under
the skin, seek medical attention immediately.
WARNING: Never pressurize unconnected
couplers. Only use hydraulic equipment in a
connected system.
IMPORTANT: Do not lift hydraulic equipment by
the hoses or couplers. Use the carrying handle or
other means of safe transport.
CAUTION: Do not operate the equipment without
lubricating all moving parts. Use only high pressure
molybdenum disulphide grease.
CAUTION: Lubricate tools as directed in this
manual prior to operation. Use only approved
lubricants of high quality, following the lubricant
manufacturer’s instructions.
CAUTION: Electric charges could be caused by
fast air movement while case remains open. Keep
case closed during work
2.4
DEFINITION OF TERMS
A CAUTION is used to indicate correct operating or
maintenance procedures and practices to prevent damage
to, or destruction of equipment or other property.
A WARNING indicates a potential danger that requires
correct procedures or practices to avoid personal injury.
A DANGER is only used when your action or lack of action
may cause serious injury or even death.
DO: an illustration showing how the tool should
be used.
DON’T: an illustration showing an incorrect way
to use a tool.
2.5
HAZARDS
IMPORTANT: Operator must be competent in
the use of hydraulic equipment. The operator
must have read and understood all instructions,
safety issues, cautions and warnings before
starting to operate the Equalizer equipment.
WARNING: To avoid personal injury and possible
equipment damage, make sure all hydraulic
components are rated to a safe working pressure
of 700 bar (10,000 psi)
WARNING: Do not overload equipment.
Overloading causes equipment failure and possible
personal injury.
CAUTION: Make sure that all system components
are protected from external sources of damage,
such as excessive heat, ame, moving machine
parts, sharp edges and corrosive chemicals.
CAUTION: Avoid sharp bends and kinks that will
cause severe back-up pressure in hoses. Bends
and kinks lead to premature hose failure.
Do not drop heavy objects onto hoses. A sharp
impact may cause internal damage to hose wire
strands; applying pressure to a damaged hose
may cause it to rupture. Do not place heavy
weights on the hoses, or allow vehicles to roll over
the hoses; crush damage will lead to premature
hose failure.

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
5
3.
GENERAL HAND PUMP
OPERATION
3.1
GENERAL GUIDANCE
The release valve is closed fully by rotating clockwise
until hand tight
CLOSE RELEASE
VALVE
The pump handle is raised, which creates a vacuum in
the piston chamber which sucks oil from the reservoir
into the chamber
The pump handle is depressed, which pumps the oil from
the chamber through the outlet port and into the system
to which the pump is connected
Steps 2 & 3 are repeated, which will pump oil into
the system until the maximum pressure of 700 bar
(10 000 psi) is achieved, at which point the safety release
valve will open and the oil will cycle back to the reservoir

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
6
3.2
HP350SMINEX, HP550SMINEX &
HP1000SMINEX INSTALLATION
AND OPERATION
WARNING: Never attempt to pressurise the
pump when the pressure gauge is not connected
or the pump is not connected to a system.
DANGER: Always check the hydraulic system
in which the pump is to be used, is rated for
700 bar (10 000 psi). Over pressurizing a
hydraulic system will result in component failure
and personal injury.
1. Prior to using the pump the hydraulic gauge must be
tted. Push the male connector on the gauge fully
into the female connector on the gauge adaptor and
rotate the locking ring counterclockwise until fully
tight.
LOCKING
RING
2. Ensure the hydraulic system you wish to pressurise
has been bled and is free from air and leaks. Connect
the pump into the system using the screw connector
supplied with the pump, push the male and female
connectors together fully and rotate the locking ring
clockwise until fully tight.
WARNING: Never disconnect the pump or
other components when the system is
pressurised.
LOCKING
RING
MALE AND FEMALE
CONNECTORS
3. Close the release valve fully by rotating clockwise until
hand tight.
CLOSE RELEASE
VALVE
4. Pressurise the system by raising and depressing the
pump handle until the desired pressure is indicated
on the pressure gauge. N.B. max. pressure 700 bar
(10 000 psi).
5. To depressurise the system, gently open the release
valve by rotating the release knob anti-clockwise
OPEN RELEASE
VALVE
6. Once the system has been fully depressurised,
the pump can be disconnected by unscrewing the
connectors.

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
7
3.3
HP350DMINEX, HP550DMINEX &
HP1000DMINEX INSTALLATION
AND OPERATION
The HP350DMINEX, HP550DMINEX and HP1000DMINEX
pumps have been designed for use with Equalizer maxi kit
systems; however the HP350DMINEX, HP550DMINEX and
HP1000DMINEX can be used in any situations where two
separate hydraulic systems require to be pressurised and
controlled independently by the same operator.
WARNING: Never attempt to pressurise the
pump when the pressure gauge is not connected
or the pump is not connected to a system.
DANGER: Always check the hydraulic system
in which the pump is to be used, is rated for
700 bar (10 000 psi). Over pressurizing a
hydraulic system will result in component failure
and personal injury.
1. Prior to using the pump, the hydraulic gauge must be
tted. Push the male connector on the gauges fully
into the female connector on the gauge adaptors and
rotate the locking ring counterclockwise until fully
tight.
2. Ensure the hydraulic systems you wish to pressurise
have been bled and are free from air and leaks.
Connect the pump into the systems using the screw
connectors supplied with the pump, push the male
and female connectors together fully and rotate the
locking rings clockwise unti fully tight.
WARNING: Never disconnect the pump or
other componnents when the system is
pressurised.
MALE AND FEMALE
CONNECTORS
LOCKING
RING
LOCKING
RING

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
8
3. The HP-D pumps are tted with two control valves and
a release valve. This enables the operator to adjust
the pressure on both hydraulic systems independently
or simultaneously.
CONTROL VALVE 1
CONTROL VALVE 2
RELEASE VALVE
a. If control valves 1 and 2 are set to the fully
open position and the release valve is screwed
fully home, when the pump handle is raised and
lowered both hydraulic systems will be pressurised
to an equal pressure (max. 700 bar (10 000 psi)).
b. If control valve 1 is open and control valve 2 is
closed with the release valve screwed fully home,
when the pump handle is raised and lowered only
the system connected to control valve 1 will be
pressurised (max. 700 bar (10 000 psi)).
c. If control valve 2 is open and control valve 1 is
closed with the release valve screwed fully home,
when the pump handle is raised and lowered only
the system connected to control valve 2 will be
pressurised (max. 700 bar (10 000 psi)).

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
9
d. If after pressurising one system the control valve
for the unpressurised system is opened then the
pressure in both systems will adjust until they are
equal.
4.
a. To depressurise both systems simultaneously,
open both control valves and gently open the
release valve by rotating the release knob anti-
clockwise.
b. To depressurise only one system, open only the
control valve for that system and gently open
the release valve by rotating the release knob
anti-clockwise.
5. At any time, during pressurisation of the systems,
the appropriate control can be closed to hold one
system at a xed pressure while the pressure in
the other system can be increased by raising and
lowering the pump handle or decreased by opening
the release valve.
6. Once both systems have been fully depressurized
the pump can be disconnected by unscrewing the
couplers

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
10
4.
HAND PUMP
MAINTENANCE
4.1
INSPECTION
A thorough inspection should be carried out prior
to usage, storage or transportation to ensure the
completeness and condition of the hand pump.
Inspection should include:
• visual inspection of the outer parts of the hand
pump, checking for obvious damage, degradation
or missing parts.
• visual inspection of the couplers and gauges,
checking for obvious damage and degradation.
WARNING: Periodic inspections and
maintenance of ATEX certied equipment are
essential in order to comply with legal
requirements and avoid unsafe operation.
4.2
CLEANING
To lightly clean the pump, wipe gently with a damp
cloth.
If more thorough cleaning is required (for example
following immersion in water) carry out the following
cleaning procedure:
• strip the tool down, observing the schematics in
section 8
• clean the components using detergent, following
the manufacturer’s guidelines
• rinse the components to remove traces of
detergent
• dry the component thoroughly
Inspect, service and lubricate the tool immediately
after the cleaning process.
4.3
MAINTENANCE
Replace missing, worn or damaged parts. Use only
genuine Equalizer parts from approved distributors
or service centres. Equalizer parts have been
engineered and manufactured to be t for purpose.
Lubricate all moving parts with light machine oil.
If topping or replacing hydraulic oil as part of a
service, use only premium quality hydraulic oil of the
grade 15 cSt.
4.4
STORAGE & TRANSPORTATION
Equalizer Hand Pumps should be stored in a cool,
dry place. Tools should always be cleaned, serviced
and lubricated prior to storage. Ensure that tools are
stored in their designated packing cases.
4.5
SUB-SEA USAGE
The Equalizer range of HP hydraulic hand pumps are
tted with a sealed-bladder type reservoir system
that allows for sub-sea operation.

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
11
4.6
LONG-TERM STORAGE -
MAINTENANCE PLAN
1. Rub components down with a dry cloth to remove
moisture.
2. Coat EVERY surface and contact point with a corrosion
inhibitor. Where necessary, coat inside and outside of
component e.g. VC10
3. Nuts and threads must also be coated with a corrosion
inhibitor.
4. Once surfaces have been coated, seal individual
components in clear plastic bags or clear vacuum
bags or clear shrink wrap.
NOTE: bags/shrink wrap must be clear for visibility.
Take care when using shrink wrap that the tool is/
components are still easy to see.
5. Remove all or, where not vacuum sealed, as much air
from bags as possible.
6. Once bags have been closed and sealed DO NOT re-
open. Any visual inspections must be done with closed
and sealed bags. If bags are opened the components
will have to be dried, re-coated and re-sealed in bags/
shrink wrap.
7. Replace silica gel (100g) EVERY TIME the case is
opened.
NOTE: depending on moisture content of air, silica gel
should be changed weekly.
8. Visually inspect kits after 30-days and every 30-days
thereafter. Remember to replace silica gel before
closing case.

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
12
5.
TECHNICAL
SPECIFICATIONS
5.1
TECHNICAL DATA
STAGE HP350SMINEX HP550SMINEX HP1000SMINEX
PUMP TYPE TWO SPEED TWO SPEED TWO SPEED
PRESSURE
RATING
1st 13.8 bar (197 psi) 13.8 bar (197 psi) 13.8 bar (197 psi)
2nd 700 bar (10 000 psi) 700 bar (10 000 psi) 700 bar (10 000 psi)
NOMINAL OIL CAPACITY 350 cc (21.4 in3) 550 cc (33.6 in3) 1000 cc (61.0 in3)
USABLE OIL CAPACITY 300 cc (18.3 in3) 580 cc (35.4 in3) 1110 cc (67.7 in3)
OIL VOLUME
PER STROKE
1st 3.62 cc (0.221 in3) 3.62 cc (0.221 in3) 3.62 cc (0.221 in3)
2nd 0.77 cc (0.047 in3) 0.77 cc (0.047 in3) 0.77 cc (0.047 in3)
MAX HANDLE EFFORT 33 kgf (72.75 lbf) 25 kgf (55.12 lbf) 21 kgf (46.30 lbf)
PISTON STROKE 18 mm (0.71”) 18 mm (0.71”) 18 mm (0.71”)
HYDRAULIC OIL Grade 15 cSt Grade 15 cSt Grade 15 cSt
STAGE HP350DMINEX HP550DMINEX HP1000DMINEX
PUMP TYPE TWO SPEED TWO SPEED TWO SPEED
PRESSURE
RATING
1st 13.8 bar (197 psi) 13.8 bar (197 psi) 13.8 bar (197 psi)
2nd 700 bar (10 000 psi) 700 bar (10 000 psi) 700 bar (10 000 psi)
NOMINAL OIL CAPACITY 350 cc (21.4 in3) 550 cc (33.6 in3) 1000 cc (61.0 in3)
USABLE OIL CAPACITY 300 cc (18.3 in3) 580 cc (35.4 in3) 1110 cc (67.7 in3)
OIL VOLUME
PER STROKE
1st 3.62 cc (0.221 in3) 3.62 cc (0.221 in3) 3.62 cc (0.221 in3)
2nd 0.77 cc (0.047 in3) 0.77 cc (0.047 in3) 0.77 cc (0.047 in3)
MAX HANDLE EFFORT 33 kgf (72.75 lbf) 25 kgf (55.12 lbf) 21 kgf (46.30 lbf)
PISTON STROKE 18 mm (0.71”) 18 mm (0.71”) 18 mm (0.71”)
HYDRAULIC OIL Grade 15 cSt Grade 15 cSt Grade 15 cSt

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
13
5.2
KIT CONTENTS
HP350SMINEX KIT CONTENTS
Product Code: HP350SMINEX
1 x HP350SMINEX Pump Unit
1 x 700 bar (10 000 psi) Gauge
1 x ⅜” Port Gauge Adaptor
1 x Instruction Manual
1 x Cardboard Packaging
Packaging Dimensions:
250 mm x 180 mm x 600 mm
(9.84” x 7.09” x 23.62”)
HP550SMINEX KIT CONTENTS
Product Code: HP550SMINEX
1 x HP550SMINEX Pump Unit
1 x 700 bar (10 000 psi) Gauge
1 x ⅜” Port Gauge Adaptor
1 x Instruction Manual
1 x Cardboard Packaging
Packaging Dimensions:
250 mm x 180 mm x 700 mm
(9.84” x 7.09” x 27.56”)
HP1000SMINEX KIT CONTENTS
Product Code: HP1000SMINEX
1 x HP1000SMINEX Pump Unit
1 x 700 bar (10 000 psi) Gauge
1 x ⅜” Port Gauge Adaptor
1 x Instruction Manual
1 x Cardboard Packaging
Packaging Dimensions:
250 mm x 180 mm x 900 mm
(9.84” x 7.09” x 35.43”)
HP350DMINEX KIT CONTENTS
Product Code: HP350DMINEX
1 x HP350DMINEX Pump Unit
2 x 700 bar (10 000 psi) Gauges
2 x ⅜” Port Gauge Adaptors
1 x Instruction Manual
1 x Cardboard Packaging
Packaging Dimensions:
250 mm x 180 mm x 600 mm
(9.84” x 7.09” x 23.62”)
HP550DMINEX KIT CONTENTS
Product Code: HP550DMINEX
1 x HP550DMINEX Pump Unit
2 x 700 bar (10 000 psi) Gauges
2 x ⅜” Port Gauge Adaptors
1 x Instruction Manual
1 x Cardboard Packaging
Packaging Dimensions:
250 mm x 180 mm x 700 mm
(9.84” x 7.09” x 27.56”)
HP1000DMINEX KIT CONTENTS
Product Code: HP1000DMINEX
1 x HP1000DMINEX Pump Unit
2 x 700 bar (10 000 psi) Gauges
2 x ⅜” Port Gauge Adaptors
1 x Instruction Manual
1 x Cardboard Packaging
Packaging Dimensions:
250 mm x 180 mm x 900 mm
(9.84” x 7.09” x 35.43”)

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
14
5.3
HP350SMINEX, HP550SMINEX & HP1000SMINEX
WEIGHTS AND DIMENSIONS
140 mm
(5.51”)
10 mm
(0.39”)
B
72 mm
(2.83”)
52 mm
(2.05”)
A
0 - 40°
141 mm
(5.55”)
23 mm
(0.91”)
HP350SMINEX HP550SMINEX HP1000SMINEX
OVERALL LENGTH (A) 554 mm (21.81”) 643 mm (25.31”) 867 mm (34.13”)
HANDLE LENGTH (B) 360 mm (14.17”) 490 mm (19.29”) 537 mm (21.14”)
PUMP WEIGHT 4.4 kg (9.7 lb) 5.0 kg (11.2 lb) 6.1 kg (13.4 lb)
GROSS KIT WEIGHT 4.9 kg (10.8 lb) 5.9 kg (13.0 lb) 7.1 kg (15.7 lb)
5.4
HP350DMINEX, HP550DMINEX & HP1000SMINEX
WEIGHTS AND DIMENSIONS
227 mm
(8.94”)
52 mm
(2.05”)
B
23 mm
(0.91”)
141 mm
(5.55”)
110 mm
(4.33”)
A
0 - 40°
HP350DMINEX HP550DMINEX HP1000DMINEX
OVERALL LENGTH (A) 580 mm (22.83”) 669 mm (26.34”) 893 mm (35.16”)
HANDLE LENGTH (B) 360 mm (14.17”) 490 mm (19.29”) 537 mm (21.14”)
PUMP WEIGHT 6.5 kg (14.3 lb) 7.2 kg (15.9 lb) 7.1 kg (15.7 lb)
GROSS KIT WEIGHT 7.2 kg (15.9 lb) 8.1 kg (17.9 lb) 9.3 kg (20.5 lb)

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
15
6.
TROUBLESHOOTING
6.1
HP350SMINEX/HP550SMINEX/
HP1000SMINEX/HP350DMINEX/
HP550DMINEX/HP1000DMINEX
TROUBLESHOOTING
HOSES ARE CONNECTED BUT THE TOOL
DOES NOT ADVANCE. THE PRESSURE ON THE
PUMP HANDLE IS MINIMAL
POSSIBLE CAUSE:
The Release valve is in the retract (open) position
(and the control valves are open on the HP-D).
RECOMMENDED ACTION:
Close the release valve (and the control valves on
the HP-D).
CLOSE RELEASE
VALVE
HOSES ARE CONNECTED AND THE PUMP
QUICKLY REACHES MAXIMUM PRESSURE
BUT THE TOOL HAS NOT ADVANCED
POSSIBLE CAUSE:
One or more of the connectors are not fully tightened
and the hydraulic oil cannot pass through from the
pump to the cylinder.
RECOMMENDED ACTION:
Check all connectors are fully tightened and the
release valve is in the fully closed position.
HOSES ARE CONNECTED AND THE TOOL
ADVANCES BUT THERE IS MINIMAL
PRESSURE ON THE PUMP HANDLE; THE
HANDLE IS RISING BACK OF ITS OWN
ACCORD
POSSIBLE CAUSE:
There is dirt or a damaged valve seat within the
pump unit.
RECOMMENDED ACTION:
The pump should be sent to an authorised Equalizer
distributor for repair.

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
16
THE TOOL THE HAND PUMP IS DRIVING IS
ADVANCING BUT DOES NOT REACH FULL
PRESSURE.
POSSIBLE CAUSE:
Air could be present in the hydraulic system.
RECOMMENDED ACTION:
Follow the airlock removal procedure:
1. Connect the hand pump to the tool with the
hydraulic hose.
2. Close the release valve on the pump, and prime
the pump until the hydraulic cylinder is fully
extended and a small pressure is achieved.
3. With the hand pump held above the tool and the
tool held in an upright position, open the release
valve. Any air that is within the system will be
forced up through the pump and vented into the
oil reservoir.
4. Repeat steps 1 - 3 three or four times to ensure
that all air is removed from the system and the
tool reaches full working pressure.
5. Disconnect the hand pump from the hydraulic
hose, grip the baseplate of the hand pump body
in a vice with the pump body vertical and the
main body at the top.
6. Remove the four nuts holding the main handle
and lift off.
7. Grip the relling plug with pliers and extract it
by pulling and twisting simultaneously. Ensure
the reservoir body is held down when removing
the relling plug as pulling up on the reservoir
body will release the bladder within, and oil will
spill out.
8. Fill the reservoir to the top with a good quality
hydraulic oil of the grade 15 cSt.
9. Reinsert the relling plug, wipe away any oil
and reassemble by reversing the disassembly
process.
AIRLOCK REMOVAL PROCEDURE:
CLOSE RELEASE
VALVE
OPEN RELEASE
VALVE
NUTS
MAIN
HANDLE
OIL
RESERVOIR
ACTUATOR
COUPLER

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
17
7.
REGULATORY
INFORMATION
7.1
REGISTERED HEAD OFFICE
EQUALIZER INTERNATIONAL LTD.
Equalizer House
Claymore Drive
Aberdeen
Scotland
AB23 8GD
7.2
APPLICABLE ATEX STANDARDS
These tools comply with Directive 2014/34/EU of the
European Parliament and of the Council of 26 February
2014 on the harmonisation of the laws of the Member
States relating to equipment and protective systems
intended for use in potentially explosive atmospheres.
The following harmonised European standards are
applicable to these tools:
• EN 1127-1:2011 Explosive atmospheres. Explosion
prevention and protection. Basic concepts and
methodology;
• EN ISO 80079-36:2016 Explosive atmospheres –
Part 36: Non-electrical equipment for explosive
atmospheres – Basic method and requirements
• EN ISO 80079-37:2016 Explosive atmospheres –
Part 37: Non-electrical equipment for explosive
atmospheres – Non-electrical type of protection
constructional safety “c”, control of ignition sources
“b”, liquid immersion “k”
8.
PARTS LISTS
& SERVICE KITS

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
18
KITS 350S 350D 350SD 550S 550D 550SD 1000S 1000D 1000SD
BLADDER SERVICE KIT A
715100-01
XX
TAIL BASE SERVICE KIT B
725200-01
XX
PISTON SERVICE KIT C
715300-01
XXXXXXXXX
HANDLE SERVICE KIT D
715400-01
XXX
YOKE SERVICE KIT E
715500-01
XXXXXXXXX
RELEASE KNOB SERVICE KIT F
715600-01
XX XX XX
VALVE SERVICE KIT G
715700-01
XXXXXXXXX
VALVE SERVICE KIT H
715800-01
XXXXXXXXX
BASEPLATE SERVICE KIT I
715900-01
XXXXXXXXX
RELEASE KNOB SERVICE KIT J
726000-01
XXX
HOUSING SERVICE KIT K
716100-01
XXXXXXXXX
GAUGE SERVICE KIT L
716200-01
XXXXXXXXX
GAUGE ADAPTOR SERVICE KIT M
716300-01
XX XX
XXX
BLADDER SERVICE KIT N
735100-01
XXX
HANDLE SERVICE KIT O
735300-01
XXXXXX
TAIL BASE SERVICE KIT P
735200-01
XXX
BLADDER SERVICE KIT Q
540014-01-01
X
VALVE SERVICE KIT R
707200-01
XXX
VALVE SERVICE KIT S
707300-01
XXX
TAIL BASE SERVICE KIT T
540015-01
X
PUMPS KIT MATRIX
710000-01 REV.02
XX
PUMPS KIT MATRIX

OPERATOR INSTRUCTION MANUAL IM_HP_EX_Rev03_A4
HP350SMINEX; HP350DMINEX; HP550SMINEX;
HP550DMINEX; HP1000SMINEX; HP1000DMINEX HYDRAULIC SEALED HAND PUMPS
19
ATEX APPROVED HP350S HYDRAULIC SINGLE PORT PUMP C/W GAUGE
Refer to pump kit matrix on pg.18 for kit part numbers