Hi-Force HTWP Series Instruction Manual

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
1
OPERATING INSTRUCTION MANUAL
HTWP SERIES | ELECTRIC DRIVEN TORQUE WRENCH
PUMPS
This manual applies to the Hi-Force HTWP Electric range of torque pumps. It contains the latest
product information available at the time of publication and approval. Information pertaining to the
servicing of the torque pump is contained in the servicing instructions which are available on the
Hi-Force website. The right is reserved to make changes at any time without notice.
This ‘Original instructions’ document assumes that the operator carrying out any operation with this
product is trained and competent to do so. This manual does not attempt to cover all details or variations
in the equipment. Nor does thismanual claim to provide for every possible contingency met in connection
with the installation, operation, or maintenance thereof. Should further information be desired, or should
a particular problem arise which is not covered in sufficient detail, the matter should be referred to
Hi-Force.

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
2
Table of Contents
1.0 Inspection upon Receipt .................................................................3
2.0 Safety Precautions...........................................................................3
3.0 Declaration of Incorporation/Conformity......................................6
4.0 Specifications...................................................................................7
4.0 Component Identification................................................................8
5.0 Installation/Setup ..........................................................................10
6.0 Operation........................................................................................16
7.0 Maintenance and Storage..............................................................19
9.0 System Components/Accessories ..............................................19
10.0 Pressure Conversion Table.........................................................20
11.0 Troubleshooting...........................................................................21
12.0 Contact Details ..................................Error! Bookmark not defined.
NOTE: Images contained within this document are for illustrative purposes ONLY.

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
3
1.0 Inspection upon Receipt
Upon receipt of the product, visually inspect the item for any evidence of shipping damage. Please note:
the warranty does not cover shipping damage. Notify the courier immediately if shipping damage is found
and refrain from putting the product into service. The carrier is responsible for repair and replacement costs
resulting from damage that occurred in transit.
2.0 Safety Precautions
2.1 Introduction
Read and follow all the instructions and safety warnings carefully before handling, installation or
use of any hydraulic equipment. Failure to do so could lead to equipment damage, equipment
failure, personal injury or even death. Hi-Force will not be held responsible for any damage to the
equipment, injury or death resulting from the unsafe use of, lack of maintenance to, or incorrect operation
of the product. If in doubt on the correct use of anyHi-Force equipment, contact your nearest Hi-Force office
or distributor. Onlyqualified personnel should be allowed to operate hydraulic equipment. If an operator has
not been trained on high-pressure hydraulic equipment and its safe usage, consult your localHi-Force sales
office or distributor who can offer training courses for operators.
2.2 Work Area Safety
Keep work areas clean and well lit. Cluttered spaces and inadequate lighting can result in
unnecessary accidents.
Keep bystanders clear of any hydraulic tool activity. Personnel working in close-range should be
made aware of all high-pressure work before commencing.
2.3 Electrical Safety Precautions
Electrical power plugs/sockets MUST match thepower source outlet socket. Never modify electrical
power plugs or tool/equipment electrics.
DO NOT abuse cabling. DO NOT use electric cables to carry, move or disconnect tools. Make sure
electrical cabling is clear of heat sources, sharp edges or moving parts.
When using the unit outdoors, use a suitably rated extension lead (if required) to reduce the risk of
electric shock.

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
4
2.4 General Hydraulic System Safety Precautions
Failure to observe and obey the following safety precautions could result
in property damage, significant personal injury or death;
When operating any hydraulic equipment, all operators should ensure that all necessary personal
protective equipment (PPE) is worn, as specified by their employer. Steel toe-cap safety shoes,
safety glasses/visor, ear protection, and protective gloves should be worn at all times. All relevant
risk assessments should be completed before the use of the equipment.
Keep hydraulic equipment away from open flames and direct heat.
NEVER use a coupler as a tool handle, especially if the system is pressurised.
Inspect hoses regularly for damage and wear.
NEVER use hoses that are frayed, kinked, abraded or leaking.
NEVER handle a pressurised hydraulic hose. Hydraulic fluid escaping under pressure from a
ruptured hose can penetrate the skin and lead to a significant medical emergency, and in some
cases, death. Should this incident occur, seek out medical attention immediately.
Seek medical attention immediately if a hydraulic injection injury (no matter how minor) occurs.
The system operating pressure MUST NOT exceed the pressure rating of the lowest-rated
component in the system.
Good Practice: Use a pressure gauge to monitor the entire system.
Only use hydraulic tools/cylinders in a complete and tested, coupled system. NEVER attempt to
use a tool/cylinder that is not correctly coupled to its operational pump.
NEVER pressurise an unconnected male coupler/s.
NEVER attempt to disconnect a hose from a hydraulic system until the system’s pressure has been
completely released. Doing so can result in that pressure becoming trapped within the system and
relieving trapped pressure can be dangerous.
NEVER try to relieve trapped hydraulic pressure in the system by loosening or attempting to remove
the coupler. Trapped hydraulic pressure can cause a loosened coupler to dislodge unexpectedly
with great force. This action could result in serious personal injury or death.
Loosening a coupler under pressure can result in the escape of hydraulic oil at high pressure, which
can penetrate the skin and cause significant injury or death.

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
5
NEVER use a hammer and punch to unseat a coupler check valve that is under pressure. Doing so
could result in the sudden, uncontrolled release of hydraulic oil at high pressure, which could cause
significant injury or death.
NEVER attempt to solve, or clean-up leaks in the system while the system is pressurised.
Immediately replace any worn or damaged parts using genuine Hi-Force parts only.
DO NOT use any hydraulic equipment if you are under the influence of alcohol, drugs or medication.
Lack of attention whilst operating high-pressure hydraulic tools can result in personal injury or death.
Failure to observe and obey the following safety precautions could result
in property damage, equipment damage or minor/moderate personal
injury;
NEVER lift, carry or move any hydraulic components by the hose or hoses connected to them.
Avoid damaging hydraulic hoses. ALWAYS route hoses to ensure that they are free from sharp
bends and kinks. Using a sharply bent or kinked hose will result in severe back-pressure, which can
lead to hose failure.
NEVER use a coupler/s to lift, carry or position a tool.
Servicing of hydraulic equipment must only be undertaken by a qualified technician.
DO NOT drop or place heavy objects on a hydraulic hose, as this may cause
internal damage, which could result in rupture of the pressurised hose. A
ruptured hose could cause significant damage to components and possible
severe injury to personal operating nearby.
DO NOT let familiarity gained with any hydraulic tools allow you to become complacent.
Complacency with any tooling can result in a lack of discipline toward working guidelines and safety
principles.
DO NOT remove any labels from the product. Replace any damaged or unreadable labels
immediately.
Avoid loose clothing and jewellery that could get caught in moving parts, tie back long hair.
2.5 Hydraulic Pump Specific Safety Precautions
Failure to observe and obey the following safety precautions could result
in property damage, serious personal injury or death;
NEVER exceed the maximum rated pressure of any hydraulic equipment. Hi-Force manufactures
its HTWP Electric hydraulic pumps to operate at a maximum working pressure of 700 bar (10,000
psi).
DO NOT connect hydraulic torque equipment with a lower pressure capacity rating to any Hi-Force
pump of this model series.

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
6
Make sure all equipment connected to the pump is in good working condition.
NEVER invert the unit or lay it on its side, either in use, in transport or in storage.
DO NOT weld any items to the pump unit or modify it in any way from its delivered condition. Your
warranty may be invalidated, and it could lead to serious personal injury.
ALWAYS ensure there is clear communication between the pump operator and the tool operator/s.
DO NOT operate the pump unless the tool operator/s indicates it is safe to do so.
NEVER attempt to connect or disconnect a tool/hose/component while the system/pump is under
pressure.
NEVER operate the pump without both hydraulic hoses and a suitable torque wrench connected to
it.
NEVER leave a pressurised system unattended. If you must leave the area, release the pressure
and ensure the hydraulic relief valve on the pump is fully open.
ALWAYS disconnect the pump from the power supply when carrying out maintenance or
adjustments (except pressure relief valve adjustments).
This pump is NOT ATEX RATED I.e. NOT suitable for work which takes place in explosive
environments.
Failure to observe and obey the following safety precautions could result
in property damage, equipment damage or minor/moderate personal
injury;
ALWAYS stand the pump on a stable, level surface during operation.
BEWARE of hot surfaces on the motor. DO NOT obstruct the flow of cooling air around the motor.
To protect your warranty, only use the hydraulic oil grade specified in Section 5.2.
3.0 Declaration of Incorporation/Conformity
Hi-Force declares that this product has been tested and complies with the standards and
declarations as set out in the Declaration of Incorporation/Conformity (DoI/DoC). The DoI/DoC is
included as Annex A to this instruction document and is supplied with all shipments of this
product.

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
7
4.0 Specifications
Oil Specification
Hi-Force tools use 2 grades of oil, dependant on the tool. The tools are designed to operate at temperatures
of -20 to 80 degrees C. Details of the oil used in this product can be found in Section 5.2.
ISO Hydraulic oil grade
Temperature range Degrees Celsius
From:
To:
ISO15
-23
44
ISO46
-2
73
Pump Specification
Refer to the identification plate on the pump for model identification.
HTWP | Torque Wrench Pumps –Electric Driven (Analogue)
Model Number
Power
Supply
Frequency
Motor
Rating
Displacement (Litres
per minute)
Changeover
pressure.
(Bar)
Weight
(incl. oil)
(kg)
Low
pressure
High
Pressure
HTWP2141AR
110V
50Hz
0.75Kw
3.7
0.34
60
34
HTWP2141ARH
120V
60Hz
0.75Kw
4.4
0.4
60
34
HTWP2142AR
230V
50Hz
0.75Kw
3.7
0.34
60
34
HTWP2142ARH
220V
60Hz
0.75Kw
4.4
0.4
60
34

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
8
4.0 Component Identification
1
Start / Stop relay switch
5
Oil level / Temperature gauge
2
Electric Motor
6
Drain plug
3
Adjustable pressure relief valve
7
Tool Advance Coupler (700 bar maximum)
4
Oil reservoir
8
Tool Retract Coupler (120 bar maximum)
Figure 4.1: Component Identification
2
7
6
5
4
8
3
1

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
9
9
Oil pressure gauge.
12
Tool Advance button
10
Oil filler / breather cap.
13
Motor control box
11
Pendant control
14
Roll frame
Figure 4.2: Component Identification
13
12
1
10
9
11
14

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
10
5.0 Installation/Setup
5.1 Before First Use / Preparation
1. Immediately after unpacking, examine the unit for signs of transit damage and if found contact the
shipping company.
2. Establish the oil level in the oil reservoir (4) using the oil level gauge (5). Depending on the shipping
method used, the reservoir may either be supplied full or empty. If the reservoir is empty, it must be
correctly filled before use (See section 5.2). If the reservoir was supplied full of oil, no further action
is required.
IMPORTANT: Running the pump without oil will result in damage.
5.2 Filling the Reservoir with Oil
IMPORTANT: The HTWP Electric Range of pumps uses ISO46 Grade Hydraulic Oil.
IMPORTANT: Only add oil to the reservoir when the attached tool is fully retracted. Failure to do so may
result in the system containing more oil than the reservoir can hold.
Stand the Pump on a firm, level surface.
Remove the filler cap (10) from the filler breather.
Fill the reservoir with clean, high-quality ISO46 hydraulic oil via the filler breather until the oil level
reaches the maximum level on the oil level gauge (5).
Replace the filler cap (10) on the filler breather.
Ensure the oil level does not fall below the minimum level. Running the pump without oil
will result in damage. (See section 7)
NOTE: More hydraulic oil can be added to the reservoir to assist with cooling if required, but not
more than 10mm above the max oil level mark on the gauge (5).

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
11
5.3 Hydraulic Connections
HTPW Electric pumps are designed for use with double-acting torque tools (powered
in both the advance and retract directions) and MUST be connected to the tool/s via
both, the advance and retract couplers. DO NOT pressurise the pump/system if there
are any disconnected couplers in the system.
ALWAYS use Hi-Force HTWH hoses to make connections.
Hi-Force HTWP Electric TorqueWrench Pumps are fitted with dual flat-face quick-connect couplers.
Make sure both coupler halves are clean before connecting.
If you are NOT using a Hi-Force Torque Wrench with the pump, or if the wrench or
hoses have been modified, make sure that the wrench is connected correctly so that
the male high-pressure advance coupler (7) is connected to the advance port on the
tool. Failure to do so may result in leakage, tool damage or personal injury.
5.3.1 Connections (See figure 5.1)
Connections between couplers are made by simply [1] pressing the male coupler into the female coupler
until [2] the locking collar springs forward and locks the couplers together.
A gentle tug on the hose should be enough to make sure the hose is correctly connected.
5.3.2 Disconnections (See figure 5.2)
Always make sure the pump is switched off and pressure hasbeen fully released before
disconnections are made.
To disconnect couplers; [1-1] twist the locking collar on the female coupler in the direction of arrow and
[1-2] pull back toward the female couplerbody. [2] With the locking collar retracted, pull the male and female
couplers apart. Fit dust caps after disconnections are made.
Figure 5.1: Hydraulic Connections
Figure 5.2: Hydraulic Disconnections

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
12
5.3.3. Connecting a Torque Wrench to the Pump
Connect the female coupler on the red hose to the male advance coupler (7) on the pump.
Connect the male coupler on the black hose to the female retract coupler (8) on the pump.
Connect the free end of the red hose to the advance port on the torque wrench.
Connect the free end of the black hose to the retract port on the torque wrench.
Figure 5.3: Connecting to the Pump
Figure 5.4: Connecting the Torque Wrench

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
13
5.5 Electrical Connection
Before making an electrical connection, refer to the data plate located on the motor (2) for voltage and
current requirements. Once satisfied the supply is suitable, an electrical connection can be made.
NOTE: Supply voltages vary from country to country. Hi-Force pumps will operate within the normal voltage
tolerance ranges, but in extreme cases where they are operated for long periods at high pressures
and in low voltage conditions, the motor may overheat and shut down.
NOTE: A common cause of pump failure is the use of long extension cables to connect the pump to the
mains supply. The pump should be situated as close as possible to the power source.
5.6 Priming the Pump
The pump is self-priming and will not need to be primed before use.
5.7 Bleeding Trapped Air from the System
Torque wrenches and hoses are not always completely filled with oil when new. Hi-Force HTWH hoses are
supplied pre-filled with oil, but NEVER assume that there are no air pockets in a hose. Air trapped in the
system will lead to erratic operation of the torque tool. For safe and efficient operation, trapped air must be
removed from the system. The following procedure must be carried out with a torque wrench connected to
the pump, but NOT fitted on a bolt.
Hi-Force uses superior quick-connect couplers on its torque tools and hoses, which admit very little air into
the system when connections and disconnections are made. However, for best performance, carry out the
below process each time hoses or tools are exchanged.
To remove air from the system, proceed as detailed below:
Connect the pump to a Torque wrench and hoses. (See section 5.3)
Ensure the pressure relief valve (3) is fully open (wound anti-clockwise).
Switch on the pump using the green start switch (1)
NOTE: The tool may slowly perform a retracting motion. This is normal but does not always occur, it will
depend on a number of factors.
Press and hold the ‘Advance’ button (12) on the control pendant (11). The tool may stay stationary
or advance slowly depending on the relief valve setting.
Set the adjustable relief valve (3) to approx. 100 bar. The tool will advance to its full stroke. If the
tool retracts, then the hoses are connected incorrectly and need to be swapped over at the tool
couplers. (Function test)
Release the ‘Advance’ button on the control pendant. The tool will automatically retract.
Repeat the advance and retract cycle at least 10 times to fully purge the air from the system.
Visually inspect the system for leaks. (Low-Pressure leak test)

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
14
With the motorrunningthe retract hose/s still contains 120 bar approx. pressure.
DO NOT TOUCH.
NOTE: When longer hoses are used (greater than 5m), the above procedure may not remove all
the air from the system. In these cases, contact your Hi-Force representative for advice on pre-filling
hoses with hydraulic oil.
Press and hold the ‘Advance’ button again. While doing so, adjust the relief valve by turning the
knob clockwise until the maximum working pressure (700 bar) is reached. The pressure can be
reduced by turning the knob anti-clockwise. The pressure setting can be locked at the desired value
by tightening the wing nut under the adjusting knob clockwise.
Cycle the pump 2-3 times to full pressure making sure both the pump and connected tool/s operate
smoothly through the entire pressure range.
Visually inspect the system for leaks. (High-Pressure leak test)
With the motorrunningthe retract hose/s still contains 120 bar approx. pressure.
DO NOT TOUCH.
Switch off the pump unit by pressing the red ‘Stop’ button (1) on the motor control box (13) and
check the tool and connections for any leaks. If leaks are found, these MUST be rectified before
commencing with any torque operation.

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
15
5.8 System Leak Test & Function Test
NOTE: These tests are performed as part of the process detailed in section 5.7 and need not be repeated
if the full process described in section 5.7 has been performed.
Low-Pressure Leak Test & Function Test
IMPORTANT: A system leak test should be performed each time a coupler/s is disconnected and new
connections are made. Paying special attention to connection points and new components
introduced to the system. (Hoses, tools etc.)
With all hoses and tools correctly connected to the pump and the pump connected to the power supply,
perform a low-pressure leak test.
Make sure the pressure relief valve (3) is in its fully open position (wound anti-clockwise).
Switch on the pump using the green start switch (1)
Press and hold the ‘Advance Button’ on the control pendant. (At this stage the pressure gauge
should read zero and the connected tool should not advance).
While holding the ‘advance button’ in, slowly turn the pressure relief knob clockwise and monitor the
pressure gauge. The pressure will slowly start to build and the torque wrench will begin to advance.
Continue until the gauge reads approximately 100 bar.
With the pressure holding steady around 100 bar, perform a visual inspection of the tool/s, hoses
and couplers for any signs of oil leakage.
DO NOT touch the hoses or couplers while the system is pressurised.
oIf a leak/s is found, depressurise the system completely before attempting to repair, resolve
or inspect a leaking component. DO NOT wipe away excess oil from any component while
the system is still pressurised.
oIf no leaks are found during the leak test it is safe to continue.
High-Pressure Leak Test
With the leak test completed and before connecting the tool to a nut/bolt, perform a function test to ensure
the tool and pump operate correctly through their entire pressure range.
A function test should be performed at the beginning of each work shift and should be repeated for every
new tool connected to the pump, during the shift.
While continuing to hold the pump in advance mode, adjust the pressure relief valve (clockwise)
until the pressure gauge reads 700 bar.
Cycle the pump 2-3 times to full pressure making sure both the pump and connected tool/s operate
smoothly through the entire pressure range.
Visually inspect the system for leaks.
If any issues are found during the function test, they must be investigated and resolved before putting the
pump/tool into use.

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
16
6.0 Operation
Hi-Force HTWP Electric Torque Wrench Pumps are used to power double-acting Hydraulic Torque
Wrenches. Make sure you read this manual in conjunction with the Torque Wrench’s operating instruction
manual to ensure correct and safe operation of all hydraulic equipment in the system.
Before applying pressure to the system make sure you observe the following points
You are aware of the correct operation of the Torque Wrench/s.
You are aware of the maximum working pressure of the Torque Wrench/s.
You are aware of the required working pressure/s that must be applied to the Torque Wrench/s.
You have read and fully understood the torqueing sequence and procedure.
You have performed the relevant risk assessment/s and have a method statement (safe system of
work) for all operators to follow.
With the motor still running the retract hose/s still contains 80-90 bar pressure.
DO NOT TOUCH.
6.1. Preparing the Pump for Operation
1. Check that the mains power supply matches the voltage displayed on the motor data plate.
2. Connect the torque wrench/s to the pump as per section 5.3.
3. Turn the pressure relief valve (3) fully anti-clockwise (fully open position).
4. Connect the pump to the power supply.
5. If necessary, bleed trapped air from the system as per section 5.7.
6. Perform system leak & function tests as per section 5.8.

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
17
6.2. Setting the Pressure (Torque)
Before setting the pump pressure it is necessary to determine what pump pressure will result in the torque
value required.
Use the tool-specific pressure-torque conversion chart provided with the torque wrench to determine the
pump pressure that corresponds to the required torque value.
The procedure for setting the pump pressure MUST be carried out with the torque tool
attached to the pump but NOT fitted onto a nut or bolt
The procedure for setting the pump pressure is as follows:
1. Loosen the wing nut below the adjustable relief valve knob and turn the relief valve knob [2]
fully anti-clockwise.
2. Turn the pump ON by pressing the green start button (1) on the motor control box (13). (See figure
4.1)
3. Press and hold down the ‘advance button’ (12) on the pendant. The tool will advance and stop at its
maximum stroke, this is correct.
4. While holding the pump in advance mode, slowly turn the relief valve knob clockwise and watch as
the pump pressure on the gauge rises.
When the pressure reaches your desired value, stop turning the knob and allow the gauge to settle.
IMPORTANT: The pressure must ALWAYS be adjusted from a lower pressure up to the target
value, NEVER down from a higher pressure to the target pressure.
5. Re-press the advance button on the pendant and slowly increase the pressure until the desired
pressure is achieved.
6. While holding the pump at the desired pressure, tighten the wing nut against the valve body. This
will lock in the pump pressure at the correct level for the required torque tool output.
7. Release the advance button and allow the tool to retract fully.
8. Cycle the pump one more time to confirm the correct pressure and ensure nothing changed while
fastening the wing nut.

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
18
6.3. Pump Operation
Hi-force recommends that operation of the pump/wrench combination be a minimum 2
person job, one to operate the pump and one to operate the wrench. An additional
operator will be required for each addition wrench connected to the pump.
To reduce the likelihood of a finger/hand trapping accident, at least one of the
operators MUST be trained in the safe usage of the equipment and a clear system of
communication MUST be established.
To ensure the safety of the torque tool operator/s, the pump MUST ONLY be operated
once all torque wrench/tool operators have indicated it is safe to do so.
1. Prepare the pump for operation as per section 6.1.
2. Set the required pressure (torque) as per section 6.2.
3. Press the green start button (1) to start the pump.
4. Press and hold the ‘Advance’ (12) button to advance the tool. (See torque wrench operating
instructions for more details about the wrench operation)
5. When the wrench stops advancing, release the ‘Advance’ button. The tool will automatically retract
ready for the next operation.
6. Turn the pump off by pressing the red ‘Stop’ button on the motor control box (13).
Good Practice: Set the relief valve (3) to the fully open position (wound anti-clockwise) after use.
7. Disconnect from the power supply.

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
19
7.0 Maintenance and Storage
Carry out basic maintenance on a regular basis to keep the pump operating in a trouble-free manner.
Maintenance intervals are determined by the frequency of use and the operating conditions on site.
Keep the unit clean.
The oil level in the reservoir should not be allowed to drop below the minimum gauge level during
operation.
ALWAYS check the oil level with the tool/s in the fully advanced position to ensure an adequate
amount of oil is available. Keep the oil reservoir topped-up with high grade ISO46 hydraulic oil as
per section 5.2.
If the oil level does fall below the minimum mark on the oil level indicator, air could
be drawn into the pump causing erratic operation and possible damage. To top
up hydraulic oil, See Section 5.2.
Oil should be replaced after approximately 500 working hours, or more frequently in dusty
conditions. To replace the oil, disconnect from the power supply, remove the oil drain plug (6) on
the bottom of the reservoir and drain the used oil into a suitable container. Replace the drain plug
(6) and refill with high grade ISO46 hydraulic oil as per section 5.2.
IMPORTANT: ALWAYS dispose of used hydraulic oil in a responsible manner, in accordance with
local regulations.
After use, always retract the tool/s fully and disconnect the hoses. Fit dust caps to the couplings,
every time disconnections are made.
Routinely perform a visual inspection of the pump and electric cables for signs of damage. Any
electrical cables showing signs of damage MUST be replaced by a Hi-Force authorised repair
centre, or by a competent electrician.
Store upright in clean and dry conditions.
Pressure gauges should be calibrated at least once every 12 months.
Sound Pressure Levels
An average A-Weighted sound pressure level of 88dB was measured for undefined workspaces, as per EU
Directive 2006/42/EC Section 1.7.4.2 (u).
9.0 System Components/Accessories
(Refer to the Hi-Force website or latest Hi-Force catalogue, for further details)
HTWH Series High-Pressure Hydraulic Hoses (Up to 100m).
HTWR1 Torque Wrench Hose Reel

Operating Instruction Manual:
OM-HTWP-ELECTRIC-01
Serial Numbers:
From: BP5141
20
10.0 Pressure Conversion Table
bar
psi
kgf/cm2
bar
psi
kgf/cm2
10
145
10.2
360
5221
367.1
20
290
20.4
370
5366
377.3
30
435
30.6
380
5511
387.5
40
580
40.8
390
5656
397.7
50
725
51.0
400
5802
407.9
60
870
61.2
410
5947
418.1
70
1015
71.4
420
6092
428.3
80
1160
81.6
430
6237
438.5
90
1305
91.8
440
6382
448.7
100
1450
102.0
450
6527
458.9
110
1595
112.2
460
6672
469.1
120
1740
122.4
470
6817
479.3
130
1885
132.6
480
6962
489.5
140
2031
142.8
490
7107
499.7
150
2176
153.0
500
7252
509.9
160
2321
163.2
510
7397
520.1
170
2466
173.4
520
7542
530.3
180
2611
183.5
530
7687
540.5
190
2756
193.7
540
7832
550.6
200
2901
203.9
550
7977
560.8
210
3046
214.1
560
8122
571.0
220
3191
224.3
570
8267
581.2
230
3336
234.5
580
8412
591.4
240
3481
244.7
590
8557
601.6
250
3626
254.9
600
8702
611.8
260
3771
265.1
610
8847
622.0
270
3916
275.3
620
8992
632.2
280
4061
285.5
630
9137
642.4
290
4206
295.7
640
9282
652.6
300
4351
305.9
650
9427
662.8
310
4496
316.1
660
9573
673.0
320
4641
326.3
670
9718
683.2
330
4786
336.5
680
9863
693.4
340
4931
346.7
690
10008
703.6
350
5076
356.9
700
10153
713.8