JETStream 3000 series User manual

OPERATION MANUAL
Bareshaft Pump

ii
Visual Safety System

Bareshaft Pump
iii
This manual is copyrighted with all rights reserved. Under copyright laws, this manual may not be copied
in whole or in part or reproduced in any other media without the express written permission of Jetstream
of Houston, LLP or its authorized agent. Permitted copies must carry the same proprietary and copyright
notices as were afxed to the original. Under the law, copying includes translations, whole or in part, into
another language.
Every reasonable effort has been made to ensure that the data given in this document is accurate, however,
the information, gures, illustrations, tables, specications, and schematics contained herein are subject to
change without notice. Jetstream®reserves the right to change any term, condition or process represented
in this document without notice and at Jetstream’s sole discretion.
©2018 Jetstream of Houston, LLP.
Published in USA
P/N 65179
Revision F
Jetstream of Houston, LLP
5905 Thomas Road, Houston, TX 77041
[phone] • [phone]
www.waterblast.com
Jetstream® is a registered trademark of Federal Signal Corp.

Operation Manual
iv
WARRANTY
Limited Warranty - Each Waterblast Unit, Bareshaft Pump, and Fluid End manufactured by Jetstream is warranted against de-
fects in material and workmanship for a period of 12 months or 1,000 hours, provided it is used in a normal and reasonable man-
ner and in accordance with all operating instructions. If sold to an end user, the applicable warranty period commences from the
date of delivery to the end user. If used for rental purposes, the applicable warranty period commences from the date of delivery to
the party holding the equipment available for rent. This limited warranty may be enforced by any subsequent transferee during the
warranty period. This limited warranty is the sole and exclusive warranty given by Jetstream.
Exclusive Remedy - Should any warranted product fail during the warranty period, Jetstream will cause to be repaired or
replaced, as Jetstream may elect, any part or parts of such Waterblast Unit, Bareshaft Pump, or Fluid End that the examination
discloses in Jetstream’s sole judgment to be defective in material or factory workmanship. Repairs or replacements are to be
made at Jetstream in Houston, Jetstream FS Solutions Rental Center, the customer’s location, or at other locations approved by
Jetstream. Labor is furnished only when the unit or part is returned to the factory or when travel and expenses are paid by the
purchaser. Freight, travel and expenses incurred in connection with repair or warranty are excluded from this warranty
and shall be paid by the purchaser. The foregoing remedies shall be the sole and exclusive remedies of any party making a
valid warranty claim.
The Jetstream Limited Warranty shall NOT apply to (and Jetstream shall NOT be responsible for):
1. Major components or trade accessories that have a separate warranty from their original manufacturer, such as, but not
limited to: diesel engines, electric motors, electronic soft starter and/or across the line starter panels, axles, PTO’s, clutch
packs, high pressure gauges, high pressure hoses, ex lances, etc.
2. Normal adjustments and maintenance services.
3. Normal wear parts such as, but not limited to: oil, clutches, belts, lters, packing, cartridges, univalves, face seals, diffusers,
gland nut bushings, plungers, nozzles, rupture disks, etc.
4. Failures resulting from the machine being operated in a manner or for a purpose not recommended by Jetstream including
failures or malfunctions resulting from corrosion, misapplication, overpressurization, inadequate pump suction conditions,
improper water quality, improper maintenance, or misuse.
5. Repairs, modications or alterations which in Jetstream’s sole judgment, have adversely affected the machine’s stability,
operation or reliability as originally designed and manufactured.
6. Items subject to misuse, negligence, accident or improper maintenance.
NOTE - The use of any part other than those approved by Jetstream may invalidate this warranty. Jetstream reserves the right
to determine, at its sole discretion, if the use of non-approved parts invalidates the warranty. Nothing contained in this warranty
shall make Jetstream liable for loss, injury, or damage of any kind to any person or entity resulting from any defect or failure in
the machine or part.
THIS WARRANTY IS, AND SHALL BE IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE,
ALL OF WHICH ARE DISCLAIMED. THIS DISCLAIMER AND EXCLUSION SHALL APPLY EVEN IF ANY WARRANTY
POSSIBLY ASSERTED FAILS OF ITS ESSENTIAL PURPOSE.
This warranty is in lieu of all other obligations or liabilities, contractual and otherwise, on the part of Jetstream. For the avoid-
ance of doubt, Jetstream shall not be liable for any indirect, special, incidental or consequential damages, including,
but not limited to, loss of use or lost prots. Jetstream makes no representation that the unit has the capacity to perform any
functions other than as contained in Jetstream’s written literature, catalogs or specications accompanying delivery of the ma-
chine. No person or afliated company representative is authorized to alter the terms
of this warranty, to give any other warranties or to assume any other liability on behalf
of Jetstream in connection with the sale, servicing or repair of any machine manu-
factured by Jetstream. Any legal action based hereon must be commenced within
eighteen (18) months of the event or facts giving rise to such action.
Jetstream reserves the right to make design changes or improvements in its products
without imposing any obligation upon itself to change or improve previously manufac-
tured products.
5905 Thomas Rd.
Houston, TX 77041
800-231-8192
832-590-1300

Bareshaft Pump
v
Table of Contents
Visual Safety System....................................................................................................................................................... ii
WATERBLAST SAFETY ....................................................................................................................................................... 1
Recognizing Safety Information.......................................................................................................................................1
Understanding Signal Words......................................................................................................................................1
Waterblast Safety Manual ...............................................................................................................................................1
General Safety Precautions.............................................................................................................................................2
Read Instructions .......................................................................................................................................................2
Inspect Equipment......................................................................................................................................................2
Check Pressure Ratings.............................................................................................................................................2
Rupture Discs.............................................................................................................................................................2
Check Connections ....................................................................................................................................................2
Tighten Connections ..................................................................................................................................................2
Use Two Operators ....................................................................................................................................................2
Purge the System.......................................................................................................................................................3
Test the System..........................................................................................................................................................3
Slowly Increase Pressure...........................................................................................................................................3
Use the Minimum Pressure Required ........................................................................................................................3
Be Prepared ...............................................................................................................................................................3
Performing Maintenance or Repairs...........................................................................................................................3
Freezing Conditions ...................................................................................................................................................3
Store Components Properly.......................................................................................................................................3
COMPONENT IDENTIFICATION ......................................................................................................................................... 5
UNxPump ..................................................................................................................................................................5
Manifold......................................................................................................................................................................5
Manifold Drain Valve ..................................................................................................................................................5
Water Lubrication System ..........................................................................................................................................5
Pressure Gauge .........................................................................................................................................................5
Rupture Discs.............................................................................................................................................................6
Bypass Valve..............................................................................................................................................................6
Regulator Valve (Not Shown) .....................................................................................................................................6
Discharge Fitting ........................................................................................................................................................6
Supply Couplings .......................................................................................................................................................7
Secondary Filter (40K Units) ......................................................................................................................................7
Fluid End Identification...............................................................................................................................................7
Jetstream 3000/3600/4200
Bareshaft Pump Installation
Guidelines........................................................................................................................................................................8
Models........................................................................................................................................................................8
Water Supply..............................................................................................................................................................8
Pulsation.....................................................................................................................................................................8
Lubrication..................................................................................................................................................................8
Jetstream 6000
Bareshaft Pump Installation Guidelines...........................................................................................................................9
Water Supply..............................................................................................................................................................9
Lubrication..................................................................................................................................................................9
Technical Notes .............................................................................................................................................................10

Operation Manual
vi
OPERATION ....................................................................................................................................................................... 11
Recommended Equipment............................................................................................................................................11
Hose and Water Supply Requirements ......................................................................................................................... 11
Start-up Preparation ......................................................................................................................................................12
Flushing the System......................................................................................................................................................13
Checking the Water Lubrication System .......................................................................................................................14
Raising System Pressure ..............................................................................................................................................15
Breaking in New Packing...............................................................................................................................................16
Monitoring Weep Holes .................................................................................................................................................17
MAINTENANCE.................................................................................................................................................................. 19
Daily...............................................................................................................................................................................19
50 Hours...................................................................................................................................................................19
100 Hours.................................................................................................................................................................19
500 Hours.................................................................................................................................................................19
1000 Hours...............................................................................................................................................................19
Winterizing The Pump ...................................................................................................................................................20
WATER................................................................................................................................................................................ 21
Water Quality Requirements .........................................................................................................................................21
Fluid Compatibility with
Jetstream Pumps...........................................................................................................................................................21
Secondary Filter (40k Operation Only)..........................................................................................................................22
Filter Cartridge Replacement ...................................................................................................................................23
Switch Adjustment ...................................................................................................................................................23
Uni-Valve Life ...........................................................................................................................................................23
PRESSURE CONVERSION ............................................................................................................................................... 25
Converting a Pump........................................................................................................................................................25
40K Hose Connections ............................................................................................................................................32
SERVICE ............................................................................................................................................................................ 33
Fluid End .......................................................................................................................................................................33
Checking Manifold Bolt Torque.................................................................................................................................33
Rupture Disc Inspection ...........................................................................................................................................34
Packing Replacement ..............................................................................................................................................34
Uni-Valve Service .....................................................................................................................................................40
40K Face Seal Replacement....................................................................................................................................41
15K, 20K Uni-Valve Service .....................................................................................................................................43
40K Uni-Valve Service..............................................................................................................................................47
Bypass Valve Cartridge Replacement......................................................................................................................51
Power End.....................................................................................................................................................................52
Checking Power End Oil Level.................................................................................................................................52
Changing the Power End Oil....................................................................................................................................53
Crosshead Pony Rod Seals .....................................................................................................................................54
Rod Journal Bearings...............................................................................................................................................57
Crosshead and Connecting Rod Assembly..............................................................................................................61
UNx Pump................................................................................................................................................................63
Crankshaft ...............................................................................................................................................................65

Bareshaft Pump
vii
TROUBLESHOOTING........................................................................................................................................................ 69
TRAINING........................................................................................................................................................................... 71
Safety Training...............................................................................................................................................................71
New Start-up Training....................................................................................................................................................71
FS Solutions Training ....................................................................................................................................................71
Additional Training Opportunities...................................................................................................................................71
INDEX ............................................................................................................................................................................IND-1

Operation Manual
viii

Bareshaft Pump
1
WATERBLAST SAFETY
Recognizing Safety Information
One of Jetstream’s ongoing endeavors is to min-
imize or elminate the risk of injury to the product
user. Jetstream has taken every effort to alert the
user to potential safety risks through the use of cau-
tionary statements within the operator manual and
safety decals on its products. Be sure to take the
time to identify and understand these notications
wherever they may be.
Always follow recommended precautions and safe
operating practices.
Understanding Signal Words
This is the safety-alert symbol. When you see
this symbol on your unit or in this manual, be alert
to the potential for personal injury. The safety-alert
symbol is often used in conjunction with signal
words.
A signal word – DANGER, WARNING, or CAUTION – is
used with the safety-alert symbol. DANGER identies
the most serious hazards.
This symbol and these signal words appear on the
unit and in this manual. Read and understand the
following denitions of the signal words before oper-
ating or working on the unit.
Danger is used to indicate the presence of a hazard
which WILL cause severe physical injury or death if
proper precautions are not taken.
Warning is used to indicate the presence of a hazard
which MAY cause serious physical injury or death,
and can result in serious property damange if proper
precautions are not taken.
Caution is used to indicate the presence of a hazard
which MAY cause some physical injury or property
damage if proper precautions are not taken.
Attention indicates installation, operation, or main-
tenance information which is important but is not
considered a hazard.
!
DANGER
!
WARNING
!
!CAUTION
ATTENTION
Waterblast Safety Manual
A safety manual is shipped with each
unit. It provides guidelines and instruc-
tions for maintaining a safe work environ-
ment while using and maintaining water-
blast equipment.
All operators and maintenance person-
nel should read and understand the content of this
manual to help maintain a safe work environment.
Contact Jetstream for additional copies of the safety
manual.
ATTENTION
The Waterblast safety manual should be kept
with the unit at all times

Operation Manual
2
General Safety Precautions
Read Instructions
Read and follow all the manufacturer’s instructions prior
to using any waterblast product. Contact the manu-
facturer if unsure of any details.
Further instructions for safe operation are located
in the Jetstream Safety Manual. Read this manual
before operating the equipment.
Inspect Equipment
Inspect the condition of all components prior to use.
Do not use any item that is in suspect condition. If
unsure about the condition of a component, ask a
supervisor or maintenance personnel for instruc-
tions. Use only components that are marked with a
recommended operating pressure. Never exceed the
operating pressure of the weakest component in the
system.
Check Pressure Ratings
All components in the
system must be properly
rated for the intended
operating pressure. Refer to
the Safety Manual for more
information on pressure
ratings.
Rupture Discs
Installation of two rupture discs is necessary to pro-
tect the pump and operators.
• Rupture disc ratings: one at 120% of operating
pressure, one at 140% of operating pressure
Check Connections
Check the condition of the connection threads prior
to making any high pressure connection. For 15,000
psi (1000 bar) and lower pressures use at least four
wraps of Teon tape on male pipe (NPT) threads for
sealing purposes. Do not allow any tape to overlap
the end of the tting. Tape fragments may enter the
system’s water stream and clog the nozzle’s orices.
Apply a coat of anti-seize compound over the Teon
sealant to prevent “galling” or seizing of threads.
For “Jetstream® 20K”; “type M”; “MP (20K)” and “HP
(40K)” connections use anti-seize compound on the
threads and the male cone.
Tighten Connections
Properly tighten all high pressure connections.
Hand-tighten pipe (NPT) ttings and then tighten
with a wrench another 1-1/2 to 2 full revolutions. Do
not exceed two revolutions on NPT threaded con-
nections. \
Use caution when using a pipe wrench. Pipe
wrenches can cause deep scoring leading to weak-
ened components.
Refer to the Technical sections in the 15K, 20K and
40K catalogs or at the following web page for more
information and torque specications for the various
ttings used on these units.
http://www.waterblast.com/Service_and_Support/
Resources/Download_Literature.aspx
Use Two Operators
Use at least two operators when waterblasting. The
primary operator handling the cleaning device must
maintain control of the water discharge at all times.
The secondary operator controlling the waterblast
unit must be positioned a safe distance of at least 12
ft. (3.7 m) from the blast operation.

Bareshaft Pump
3
Purge the System
Before attaching a nozzle to the control gun or tube
cleaning lance, operate the pump at low speed to
purge dirt and debris from the system. Dirt and
debris can clog nozzle orice(s) and cause exces-
sive system pressures.
Test the System
With the nozzle installed, operate the pump at low
speed (low pressure) to test the system. Should
system repairs or adjustments be necessary, stop
the pump and relieve all pressure before performing
any required repairs or adjustments.
Slowly Increase Pressure
Visually inspect all ttings for leaks at 1000 psi (69
bar), and then again once the system reaches full
pressure. Do not use your hand to nd leaks. If leaks
are evident, turn the system off and relieve the pres-
sure. Remove the leaking tting, clean and inspect.
If the tting looks undamaged, re-install the tting.
If the leak persists, the tting must be replaced.
Leaking ttings can cause tting damage and very
dangerous injection wounds.
With the system operating properly, slowly increase
pump speed until operating pressure is reached.
Use the Minimum Pressure Required
Do not exceed the operating pressure of the sys-
tem’s lowest pressure-rated component. Use of low-
er pressure-rated components in a system should
be avoided if possible. Components with a lower
pressure rating can be overlooked and explode if
vigilance is not maintained. Keep equipment pres-
sure rating and warning tags intact.
Be Prepared
If equipment malfunctions or a malfunction is suspect-
ed, immediately stop the cleaning activity and relieve
the pressure in the system before attempting any re-
pair. Always follow manufacturer’s repair instructions.
Performing Maintenance or Repairs
Because of the hazards involved with water blasting,
maintenance or repairs may only be performed by
service personnel that are properly trained to main-
tain this equipment. Training is available through
Jetstream®and can be requested from the Jetstream
website (www.waterblast.com) or FS Solutions rental
centers.
Following repairs or maintenance, operate the sys-
tem at low pressure to test the system. Adjust the
pressure slowly during operation.
Freezing Conditions
After shutting down in freezing conditions, even for
brief periods, drain the water from all components.
Prior to starting the equipment after a freeze, the
operation of all equipment components must be
checked carefully to ensure they are not frozen, or
cracked, and are still in safe operating condition.
Refer to”Winterizing the Pump” on page 19” for
details.
Store Components Properly
Properly store components to protect from damage
when not in use. Ensure all warning tags and mark-
ers remain intact for the next usage.

Operation Manual
4

Bareshaft Pump
5
COMPONENT IDENTIFICATION
Before operating the unit it is necessary to fully understand each component and how it functions. Following is a
brief description of the unit’s main components.
UNxPump
The UNx pump uses the power from the engine
to pressurize the source water into high pressure
output. The pump is separated into two sections, the
power end and the uid end.
The power end contains the components that drive
the pump. It is also referred to as the “crank end”
because it contains a crankshaft.
The uid end contains the components that determine
the output pressure of the pump. The operator may
change the output pressure and ow of the pump
by changing the components in the uid end. The
uid end is also referred to as the “wet” end as this is
where the water travels in and out of the pump.
Refer to the pressure specic catalogs (15K, 20K
and 40K) for detailed exploded views and compo-
nent part numbers for the uid and power ends. The
catalogs are available at the following website:
http://www.waterblast.com/Service_and_Support/Resourc-
es/Download_Literature.aspx
Manifold
The manifold houses many of the components that
make up the uid end of the pump including the
uni-valves. The three uni-valves each consist of
a suction and discharge valve combined into one
assembly. The valves convert low pressure water to
high pressure water.
Manifold Drain Valve
The manifold drain valve allows the manifold to be
ushed of contaminants prior to pump usage. It is
also used to purge air during operation start up.
Water Lubrication System
The water lubrication system provides water to the
packing in the pump. The water lubricates and cools
for optimum operation of the pump. The system
includes a manifold and three water lines. Needle
valves are present on manifolds that are pressure
fed (all 40K units). The needle valves control the
amount of ow to each stufng box and must be
properly adjusted during operation. Manifolds that
are not pressure fed have a xed ow.
Pressure Gauge
The liquid lled pressure gauge allows the operator
controlling the pump to monitor the pressure of the
system.
Figure 1: Bareshaft Pump.

Operation Manual
6
Rupture Discs
Two rupture discs are used in the system. The rup-
ture discs provide protection from excess pressure
in the system. If system pressure were to exceed the
rated pressure of the discs, the discs would burst.
If a disc bursts, water will ow through the ruptured
disc to provide relief for the system and protect
components from excess pressure. Check the discs
before operating the pump. Keep a supply of rupture
discs on hand for use. If a rupture disc should burst,
there is no way to build pressure until the disc is
replaced. Use only genuine Jetstream rupture discs
properly rated for the intended operating pressure.
Bypass Valve
The bypass valve controls the pump pressure by
bleeding off excess water and diffusing it to low pres-
sure. Turning the knob allows the operator to adjust
pressure during operation and relieve pressure when
not waterblasting.
The bypass valve controls pressure by allowing
water to bypass though the valve. A discharge hose
is attached to the bypass valve. The hose extends
to the other side of the unit where it is attached to a
drain elbow. Water that bypasses the valve will drain
from the bypass drain throughout operation.
The proper use of the bypass valve is to install the
correct size nozzle in the system so that the bypass
valve can be closed during operation. A combination
of plunger size, engine rpm, and nozzle will allow the
bypass valve to close at almost all ow rates.
Note: For pumps employing a shut in
system, a regulator valve is substituted
for a bypass valve.
Regulator Valve (Not Shown)
For shut-in systems (where no low pressure water
dumps from the gun), the bypass valve is replaced
with a regulator valve. The regulator maintains
constant system pressure when operating one or
more shut-in devices. When a gun or other device
is disengaged, the regulator automatically adjusts
to shift the excess ow to a low pressure outlet
while maintaining system pressure. Because shut-
in systems maintain constant system pressure, the
hydro-throttle does not function in these applications.
Discharge Fitting
The discharge tting allows the connection of a
high pressure hose. High pressure water exits from
this tting. On 15K manifolds, a quick disconnect is
recommended to prevent galling of pipe threads and
damage to the manifold.
Pressure Gauge
Hydro-Throttle
Switch
Water
Lubrication
System Manifold Drain Valve Manifold
Rupture Discs
Figure 2: Pump Components.

Bareshaft Pump
7
Supply Couplings
The supply couplings provide a quick method for
attaching the supply hose to the manifold.
Secondary Filter (40K Units)
A secondary lter (Figure 4) is mounted on top of the
pump for use when operating at “40K”. The lter is
not connected during 15K or 20K operation.
A pressure gauge is mounted on the lter to monitor
pressure in the lter.
A differential pressure switch is mounted in the lter
circuit to monitor proper ow through the lter. If the
lter becomes plugged and ow is insufcient, the
switch will cause the engine to shut off. “Emergency
Stop” will be displayed on the control panel.
A drain valve is located on the lter cover that allows
the operator to purge air from the lter at startup.
Fluid End Identication
A plate (Figure 5) is attached to all uid end mani-
folds. The plate is stamped with the uid end model
number. In addition, the plate is stamped with plung-
er size and output pressure related to that plunger
size. Refer to this plate before operating the pump.
Discharge Fitting
Supply
Couplings
Bypass Valve
Figure 3: Pump Components (Continued).
Figure 4: Secondary Filter.
Rating Plate
Figure 5: Fluid End Rating Plate.

Operation Manual
8
Jetstream 3000/3600/4200
Bareshaft Pump Installation
Guidelines
Models
The Jetstream UNx bareshaft pump is available in
three horsepower ranges and three pressure ranges
– 15,000 psi, 20,000 psi, or 40,000 psi and can be
supplied with an optional geardrive. The geardrive is
available in four different gear ratios to support die-
sel engine or electric motor input speeds. Both styles
can be supplied left hand drive or right hand drive
(as viewed from FE) and the geardrive model’s input
shaft can also be clocked to five different locations.
The geardrive unit requires inline drive with flexible
coupling***. The standard unit can be inline or belt
driven via pulleys exerting a side load on the crank-
shaft. All Jetstream powerends have a preferred
rotation direction (top of crankshaft towards the fluid
end) that is marked on the casting. However reverse
rotation operation is allowed with the addition of
optional reverse rotation oil scrapers. The geardrive
requires a clockwise input rotation direction.
3000 series 150 hp max 600 rpm max
3600 series 175 hp max 550 rpm max
4200 series 325 hp max 518 rpm max
Water Supply
The 15K and 20K versions can be gravity fed (water
level 3’ minimum above the manifold suction inlet).
The 40K version requires 40 psi minimum supply
pressure at full pump speed to operate. All fluid ends
have a maximum inlet supply pressure of 75 psi.****
The supply water should be clean and cold. The
maximum allowed inlet water temperature is 125°F.
Ideally the water should be filtered to 25 micron (3
micron for 40K) and 40-80°F for maximum packing
life. Severly reduced packing life will be encountered
with warmer water. The inlet supply hose should be
3” ID if gravity fed and 2” ID if pressure fed. Jet-
stream recommends oilfield suction hose as it has
proven to be durable with a relatively small bend
radius. The hose should be as short and straight as
possible with no additional fittings (elbows) - espe-
cially important with gravity fed setup. If bends are
required it is best to bend the hose without the use
of elbows.
The plunger packing is lubricated with the supply
water and is not adjustable on normal gravity fed
15K/20K systems. On 40K and pressure fed sys-
tems, the lube harness needs to be equipped with
needle valves to allow adjustment of the lube water
flow. The cooling water should exit the rear of the
gland nuts with a steady stream (more than a drip)
but not enough to be splashed onto the pony rod
during operation.
Pulsation
Positive displacement pumps create pulsation in
the high pressure discharge line. For this reason,
it is extremely important to utilize flexible hoses
(ie rubber, thermoplastic) in lieu of rigid piping to
minimize water hammer and vibration. If rigid piping
is necessary, it should not be installed at the pump
discharge. A 25’ or 50’ section of hose should be
installed at the pump discharge. This length can be
coiled and hung for space savings. A high pressure
pulsation damper may be beneficial in some cases.
Short on/off cycles at high pressure will create the
largest spikes of pressure and require care to damp-
en. Flow controls or other means to slow the abrupt
change of pressure will smooth these pulsations.
Lubrication
The powerend is lubricated via 80W90 gear oil (non
detergent only) in the sump of the housing. The
journal bearings, crossheads, and connecting rod
bushings are supplied oil via gravity from a collection
trough above the crossheads. The powerend has a
level requirement to ensure oil lubricates the crank-
shaft tapered roller bearings and stays in contact
with the crankshaft. Front to back level specification
is 7° and side to side level is 10°. Both a low oil level
shutdown and a high oil temperature shutdown are
available as options.
The powerend oil has a recommended maximum
temperature of 190°F and can be comfortably run
in most environments. Extremely hot or cold envi-
ronments (i.e. Middle East, Canada) may require oil
cooler or synthetic oil. Contact Jetstream Engineer-
ing for assistance.

Bareshaft Pump
9
Jetstream 6000
Bareshaft Pump Installation
Guidelines
All of the previous requirements are the same for
6000 except as noted below:
The 6000 powerend is internally geared and requires
inline drive with flexible coupling ***. It is available in
four different gear ratios to support diesel engine or
electric motor input speeds. It can be supplied left or
right hand drive but must be driven with input shaft
rotating top towards rear (i.e. LH requires CCW and
RH requires CW at input shaft).
6000 series 600 hp max 457 rpm max
Water Supply
The 6000 pump cannot be gravity fed and requires
40-50 psi suction water pressure at full pump speed
to operate. As such it is supplied with lube water flow
control valves mounted on the suction manifold. All
fluid ends have a maximum inlet supply pressure of
75 psi.****
Lubrication
The powerend is lubricated with 12 gallons of ISO
320 gear oil. Only the following brands are allowed:
• Aral Motanol HP 320
• Mobil DTE. Oil AA 320
• BP Energol CS 320
• Shell Vitrea 320
• Castrol Alpha ZN 320
• Valvoline IRF 320
• Dea Oursa OEL P 320
• Elf Polytelis 320
• Esso Nuto 320
The 6000 powerend is equipped with an oil tempera-
ture shutdown gauge and the maximum allowed oil
temperature is 190°F (normal range is 160-170°F).
An integrated oil cooler (dual loop) is located inside
the powerend sump and uses 3-5 gpm (15-20 lpm)
of suction water to cool the oil. The warm water
outlet of this cooler will need to be plumbed back
into the cold water supply tank or routed to an appro-
priate drain. The oil is pumped via external oil pump
through external filter and routed inside powerend to
critical points. It is supplied with an oil pressure shut-
down gauge and requires 30 psi minimum (normal
operating range is 60-70 psi). The filter should be
changed every 500 hours.

Operation Manual
10
Technical Notes
*** Driver selection and coupling selection requires
engineering analysis of torsional loads and vibra-
tions (TVA). Jetstream can supply the mass- elastic
data for the pump but it is customer’s responsibil-
ity to perform TVA of the system. Coupling failure,
engine damage, and powerend damage can result
from incorrect coupling selection.
****All pumps have a minimum inlet pressure neces-
sary to prevent cavitation.
Additionally, Jetstream (and many other) pumps
have a maximum allowable inlet pressure. Excessive
inlet pressure will not affect the operation or life of
the fluid end, but can negatively affect the power
end.
The connecting rods are equipped with plain bear-
ings where they contact the crankshaft. These bear-
ings require lubrication to survive. When the crank-
shaft rotates and pulls the crosshead backwards
through the suction stroke, the force between the
connecting rod journal bearing and the crankshaft
decreases greatly. This reduction in force and the
rotation of the crankshaft causes oil to be drawn into
the small space between the connecting rod journal
bearing and the crankshaft. As there is no oil pump
in the 3000/3600/4200 series, this is the only mecha-
nism that lubricates the journal bearings.
High pressure on the plungers during the suction
stroke can prevent oil from being drawn into the
space between the connecting rod journal bear-
ing and the crankshaft. The lack of lubrication can
cause journal bearings to fail in only a few hours.
This problem is worse with large plungers, high inlet
pressure, and low speeds.
Following Jetstream’s maximum allowable fluid end
inlet pressure of 75 psi and minimum pump speeds
of 200 rpm for the 3000, 183 rpm for the 3600, 173
rpm for the 4200, and 100 rpm for the 6000 series
will prevent this type of failure.

Bareshaft Pump
11
OPERATION
Recommended Equipment
Jetstream equips the waterblast units with the com-
ponents they recommend for safe operation. Those
components include:
• Pressure Gauge
• Two Rupture Disc Assemblies
• Bypass Valve or Regulator Valve
• Discharge Quick Disconnect Coupling.
ATTENTION
Installation of two rupture discs is required by
Jetstream for warranty coverage on this pump.
One rupture disc must be rated at 120% of the
uid end stamped pressure rating. The other
disc must be rated at 140% of the uid end
stamped pressure rating.
Keep a supply of rupture discs on hand for oper-
ation at different pressures and for replacement
in the event of a rupture.
WARNING
!
Do not operate the engine without water in the
system. Damage to the charge pump will occur.
ATTENTION
A quick disconnect coupling is an important
means of protecting the manifold from wear at
the high pressure discharge hose connection
port. If the internal threads on the manifold
become worn or damaged the cost to repair
them is far greater than replacing a coupling.
The manifold would need to be shipped back
to Jetstream for repair or replacement.
Hose and Water Supply
Requirements
– The water supply hose inside diameter must
be large enough to supply 150% of the unit’s
maximum ow requirements.
– The inside diameter of the high pressure
discharge hose will be determined by the
necessary length of hose and the amount of
ow passing through the hose length. Contact
your Jetstream representative for proper hose
sizing.
– Supply pressure must be no greater than 150
psi (10.3 bar) into the waer tank. If pressure
exceeds 150 psi (10.3 bar), install a pressure
regulator large enough to meet ow require-
ments. Regulators are available from Jet-
stream.
– Water temperature 125°F maximum.

Operation Manual
12
Start-up Preparation
1. Inspect the lter bags. Inspect the secondary
lter cartridge if operating at 40K.
2. Check the tightness of the gland nuts on each
stufng box.
3. Inspect all equipment. Ensure that every piece
of equipment in the pressure circuit is properly
rated for the intended operating pressure. Re-
place any component that is not properly rated.
4. Connect the supply hose and verify the drain
valve is closed.
5. Open the water supply valve and allow the tank
to ll. Any valves between the water tank and
the pump must be open.
6. Install the discharge hose onto the tting on the
manifold along with a hose safety check.
7. Open the bypass valve by turning the knob
fully counter-clockwise until the O-ring is visible
(where the knob enters the valve body) or four
full turns counter-clockwise from the closed
position. This allows the engine to start without
a load from the pump.
WARNING
!
Anytime the system has been opened, the
system must be purged.
When the high pressure hose is rst connected
to the unit or when extra hose lengths are added
to the hose string, the hose must be purged of all
dirt and debris. Do not connect the control gun or
tool to the high pressure hose until the hose has
been purged of dirt and debris with water ow
from the pump. Failure to purge debris inside
a hose may result in clogging of the cleaning
nozzle and excess pressure in the system.