Jensen 400 User manual

400 Series
Installation
Operation and
Maintenance Manual
S16AC-4
REV 3
Jensen Mixers Int.
5354 South Garne Rd.
Tulsa, OK. 74146
Tenney Company
www.tenneyco.com
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2
When mixers are delivered, check for shipping damage.
Report damage to carrier and Jensen Mixers.
Installaon, Operaon, Maintenance
Installaon Series 400 Fixed and Vari-Angle Mixers
 Remove blank cover plate from tank nozzle and check Jensen supplied mixer cover plate for
correct size, hole locaon and orientaon.
 Clean gasket surface on tank nozzle and mang ange on mixer coverplate.
 Mount propeller on sha (secure both setscrews on propeller lock assembly) providing manway
is large enough for propeller to roll through opening. (See page 4 for propeller roll through
opening specs.)
 Install gasket and bolt Mixer with coverplate to manway. No addional supports are necessary.
 For units with factory mounted motors, the installaon is now complete.
 For units with the motor shipped separately or customers supplying their own motor; mount
the motor to the mounng plate and loosely posion the drive pulley on the motor sha. Install
belts and check alignment and belt tension as described on page 5.
 Re-install all belt guards.
Startup
Recommended Operaon, Periodic Maintenance
 Make up the electrical wiring in such a manner that there is enough exible cable from the
rigid conduit to the mixer to allow the VA mixer, if VA mixer is being installed, full swing.
Electrical hookup must be in accordance with exisng electrical code for the area.
 Remove belt guards and check belt deecon and alignment before startup. See (Page 4.)
 Turn motor on for 5 seconds maximum, to check sha or propeller rotaon. The mixer sha
must turn clockwise when viewing mixer from behind, looking towards the tank.
Once tank uid is above mixer sha, open AIR RELEASE valve (Pg. 11) to vent the trapped air
and allow tank product to lubricate the seal.
 Start mixer aer tank contents is 10 feet (3 meters) above the propeller. The only noise one
should hear is that of the propeller moving the uid in the tank and the hum of the motor. If
any other noise is heard, shut down motor, invesgate and correct.
 Be sure the latch bar bolts are ght, if VA mixer was installed. If any excessive vibraon is
detected, make sure the propeller ps are not less than 8” (203 mm) from any obstrucon.
 Check the motor current with an ampmeter. Check both electrical legs to be sure that the
amperage is less than that printed on the motor name tag.
 Recheck belt deecon and tension aer the rst 8 hours of operaon.
 Units with factory installed actuator, see actuator operaon sheet.
 Units should be checked at least once within 24 hours of startup.
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3
Recommended Operaon:
 Mixers installed on tanks with exisng sediment accumulaon should be operated connuously as
long as oil level is above 10 feet (3 meters) and sediment content in outgoing stream is acceptable.
Angle variaon from full le to full right and to center should be made periodically – once each month
during connuous running. Recommended posions –30º to –5º to 30º then repeat
 For eecve sediment control on clean tanks, start mixer 8 hours before pump-out. Connue unl
tank is half full. This procedure will need to be modied to suit climate and condions. In controlling
sediment, angle variaon need be made only about once each month.
Periodic Maintenance:
 WEEKLY: Observe Center Sight Glass on Sentry System for uid, this will be indicaon of seal issues.
 WEEKLY: Check external moving parts for abnormal wear.
 MONTHLY: With the mixer running, check for noise and vibraon. (See Troubleshoong if occurs)
 MONTHLY or AS NEEDED: Check belt defecon and wear. Be sure the pulleys are not worn and are clean.
 QUARTERLY: Grease hinge zerk if Jensen Actuator is installed.
Tenney Company
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For Jensen Mixer Parts - Call 281-350-1200

4
PropellerClearance&FluidLevels
Almost every vibraon problem experienced with Jensen Mixers has proved to be a result of too lile clearance
between tank walls or oors and the mixer propeller. Operaon of mixers with low uid levels in the tank will
cause air to be drawn into the propeller ow stream and will also cause vibraon.
Manway
depth
H20 23 26 29 32 35
414 16 17 19 20 22
515 16 18 19 21 22
616 17 19 20 22 24
716 17 19 22 24 25
818 19 20 23 25 26
918 19 20 24 26 28
10 18 20 22 24 27 29
11 18 21 22 25 27 30
12 19 21 22 25 28 30
13 19 21 22 26 29 32
14 21 22 24 27 30 34
15 21 22 25 28 30 34
Propeller size /Manway I.D.
Example: A 29” propeller will rotate through a 23”
opening provided the depth of opening is 8” or less
H
Manway ID
Propeller Manway Roll Through Clearances.
“H” Dimension is the measurement from the inside of the tank wall to the edge of manway.
Tenney Company
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5
Motor Belt Alignment
V-Belt and Cog Belt Drive Maintenance:
 Check alignment of pulleys
 Maintain uniform tension.
 Avoid heat above 140ºF. (60ºC)
 Keep drives well venlated
 Never use belt dressing.
 Worn sheaves reduce belt life.
 Do not allow oil on belts.
 Never force belts onto sheaves.
 Equalize slack before ghtening by marking
one side of each nut to aid in tracking nut
turns.
Model Deecon V-Belt Force V-Belt Size Cog Belt SizeCog Belt Force
420 3/16 (4.5 mm) 3.3 to 4.8 lbs 3V450 NANA
450 ¼ (6 mm) 5.0 to 7.5 lbs 3V710 8MGT-1792-218 to 10 Lbs
480 3/8 (9.5 mm) 5.0 to 7.5 lbs 5VX1000 14MGT-2520-3718 to 20 Lbs
BELT DEFLECTION SHOWN
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6
Repairs Field Assembly Tool List:
Field service and inspecon on Jensen Series 400 Mixers requires only basic hand tools.
The following list will allow removal of all major components.
All maintenance repairs should be performed with the mixer motor locked out and tank contents
locked in. (See page 8 for lockout instrucons.)
 Main bearing – Perform LOCKOUT PROCEDURE and remove seal. Remove all belt guards. Remove 4
hex socket head screws from the bearing retainer ring. The driven pulley along with bearing and
pulley hub can be removed by pulling straight back. With the pulley assembly o, press out bearing
from back side of hub and replace. Reverse above procedure for re-assembly.
 Mechanical Seal replacement see pages 6-10.
 Belt replacement—Remove all belt guards. Lower the motor base plate. Remove belts and replace.
Reghten using belt alignment guide. (Page 4)
When the mixer is removed for repairs:
Sha Bushing Inspecon - (Item # 37 pre Sentry or #29 Sentry)
 Once the body has been removed, the inner sleeve which holds the sha bushing can be removed. A groove is provided on the
exposed end of the inner sleeve; a pair of screwdrivers may be used here to start the sleeve out. The sha bearing is located
inside the inner sleeve at the propeller end. If it is badly worn or scarred, it should be replaced.
 The bushing material is solid tungsten carbide for greatest resistance to wear in the most abrasive environments. If it is worn it
will be necessary to replace the enre INNER TUBE ASSEMBLY.
 To reinstall the inner sleeve, posion the lugs away from prop, vercally, then push the sleeve in unl it stops. Replace the O-
ring on the outside of the sleeve.
 We recommend that when mixing light products such as gasoline, or materials containing heavy abrasive characteriscs, the
inner sleeve should be removed and the TC bushing inspected.
Sha Wear Sleeve - (Item # 38 pre Sentry or #31)
 All Jensen Series 400 mixers are equipped with a tungsten carbide reversible sha wear sleeve. When the tank is out of service
for periodic maintenance, the wear sleeve should be inspected. If it is badly worn or scored it should be reversed. To change
the sleeve, remove the propeller and sha lock bushing, reverse the wear sleeve and assemble.
JENSEN OFFERS A FULL FACTORY RECONDITIONING PROGRAM, CONTACT YOUR LOCAL REP FOR DETAILS.
420 450 480
End Wrenches (2) Ea. 1/2, 9/16 ,3/4 5/16, 1/2, 9/16 ,3/4,
15/16, 1-7/8
5/16, 1/2, 9/16 ,3/4,
15/16, 1-7/8
Hex Wrench (1) Ea. 3/16, 7/32, 1/2 3/16, 7/32, 1/2 3/16, 7/32, 1/2
Adjustable Wrench (1) 2” Jaw Open 2” Jaw Open 2” Jaw Open
Large Flathead Screw-
driver 2 Required 2 Required 2 Required
Tenney Company
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For Jensen Mixer Parts - Call 281-350-1200

7
400 (Pre 2014 Sentry System)
MECHANICAL SEAL CHANGE
Jensen Serial Numbers before
480 Mixer DR-101 to DR-1123
450 Mixer DO-101 to DO-781
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8
Jensen 400 series 2014-Older (Pre-Sentry System)
Jensen Serial Numbers 480 Mixer DR-101 to DR-1123 450 Mixer DO-101 to DO-781
Tenney Company
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For Jensen Mixer Parts - Call 281-350-1200

9
Tenney Company
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For Jensen Mixer Parts - Call 281-350-1200

10 S16BR –Rev5
Pg 1 of 2
Jensen Serial Numbers AFTER 480 Mixer DR-1106 450 Mixer DO-781
1. If tank product is
noced in one of
the TOP TWO sight
glasses follow the
steps below.
4. Drain RESERVOIR by removing the plug and open the
release VALVE HANDLE. A
5. Remove VENT PLUG in front of the Mixer Bulkhead.
This will accelerate draining the Reservoir tank. B
2. Remove YOKE COVER.
(½ OPEN WRENCH)
Remove YOKE bolts.
(¾ OPEN WRENCH )
Posion YOKE with SEAL PIN
HOLE at 12 O'clock Posion.
3. Perform Lock-O by
A. Pulling the YOKE back to stop. (Approximately 1 inch).
TANK PRODUCT MAY BLEED DURING THIS OPERATION.
B. Turn YOKE counter-clockwise unl SHAFT stops
(Approximately 90º). Placing pin at 9 o’clock posion.
Mixer will be LOCKED OFF at this point AND
CAN BE CONFIRMED BY OPENING THE AIR
RELEASE VALVE. (Pg 11.)
6. Remove SHAFT BOLT (¾ OPEN WRENCH ) , YOKE, and KEY
Remove SEAL DRIVE RING. (A solid pull by hand will generally be sucient.)
Two 1/4-20 tapped holes are provided to aid in removal.
MECHANICAL SEAL can normally be reached and replaced at this point.
Two 1/4-20 holes have been drilled and tapped into MECHANICAL SEAL Body to aid in removal.
NOTE: Use cauon to avoid damage of Lip Seal when removing MECHANICAL SEAL.
 Extreme cauon should be taken to not damage the Inner LIP-SEAL, failure will
require replacement of LIP-SEAL.
 Reverse steps aer installaon of new MECHANICAL SEAL.
 WARNING: YOU MUST ALIGN SEAL DRIVE RING HOLE WITH SEAL DRIVE PIN.
 PERFORM SYSTEM FLUSH OF SENTRY SYSTEM Pg. 11
 If debris is unreachable connue with steps 8-12 SEAL CHAMBER CLEANING.
A.
B.
NOTE: Complete seal exchange can be aided by removal of all covers.
TAKE NECESSARY STEPS TO CONTAIN PRODUCT
A
B
2.
3.
6.
4. 5.
7A NOTE;
TOOLS REQUIRED
2” ADJUSTABLE WRENCH
½ OPEN ENDED WRENCH OR SOCKET
¾ OPEN ENDED WRENCH OR SOCKET
LARGE FLAT HEAD SCREWDRIVER
Two ¼-20 3”-4” BOLTS
Tenney Company
www.tenneyco.com
For Jensen Mixer Parts - Call 281-350-1200