Gorman-Rupp Pumps 06C1-GHH User Manual
Q
OM‐03179‐OP02
June 6, 1995
Rev. E 03‐07‐13
INSTALLATION, OPERATION,
AND MAINTENANCE MANUAL
WITH PARTS LIST
0 SERIES PUMPS
MODEL
06C3-GHH06C1-GHH
06D1-GHH 06D3-GHH
THE GORMAN‐RUPP COMPANY MANSFIELD, OHIO
www.grpumps.com
GORMAN‐RUPP OF CANADA LIMITED ST. THOMAS, ONTARIO, CANADA Printed in U.S.A.
1995 The Gorman‐Rupp Company
Register your new
Gorman‐Rupp pump online at
www.grpumps.com
Valid serial number and e‐mail address required.
RECORD YOUR PUMP MODEL AND SERIAL NUMBER
Please record your pump model and serial number in the
spaces provided below. Your Gorman‐Rupp distributor
needs this information when you require parts or service.
Pump Model:
Serial Number:
TABLE OF CONTENTS
INTRODUCTION PAGE I - 1.................................................
SAFETY - SECTION A PAGE A - 1...........................................
INSTALLATION - SECTION B PAGE B - 1....................................
PREINSTALLATION INSPECTION PAGE B - 1............................................
PUMP INSTALLATION PAGE B - 1......................................................
Pump Specifications PAGE B - 1....................................................
Pump Mounting Dimensions PAGE B - 2............................................
DIMENSIONAL DRAWING PAGE B - 3..................................................
VEHICLE REQUIREMENTS PAGE B - 4.................................................
Tank Preparation PAGE B - 4.......................................................
Brake Installation PAGE B - 4......................................................
Air Cylinder Pressure PAGE B - 4...................................................
POSITIONING PUMP PAGE B - 4.......................................................
Lifting PAGE B - 4.................................................................
Mounting Location PAGE B - 4.....................................................
Mounting Brackets PAGE B - 5.....................................................
Drive Flanges PAGE B - 6..........................................................
DRIVE SHAFT AND LINKAGE CONNECTIONS PAGE B - 6................................
Drive Shaft Alignment PAGE B - 6...................................................
Gear Shift Connections PAGE B - 7.................................................
SUCTION AND DISCHARGE PIPING PAGE B - 9.........................................
Typical System Installation PAGE B - 9..............................................
Piping PAGE B - 10................................................................
Valves PAGE B - 10................................................................
Eductors PAGE B - 11..............................................................
OPERATION - SECTION C PAGE C - 1......................................
PRIMING PAGE C - 1.................................................................
GROUNDING PAGE C - 1.............................................................
STARTING PAGE C - 2................................................................
OPERATION PAGE C - 2..............................................................
Operating Controls PAGE C - 2.....................................................
Shifting Sequence PAGE C - 3.....................................................
OPERATING CHECKS PAGE C - 3......................................................
Leakage PAGE C - 3..............................................................
Strainer Check PAGE C - 3.........................................................
Liquid Temperature And Overheating PAGE C - 3.....................................
Pump Vacuum Check PAGE C - 3..................................................
STOPPING PAGE C - 4................................................................
Cold Weather Preservation PAGE C - 4..............................................
TROUBLESHOOTING - SECTION D PAGE D - 1..............................
PUMP MAINTENANCE AND REPAIR - SECTION E PAGE E - 1................
STANDARD PERFORMANCE CURVE PAGE E - 1........................................
PARTS LISTS:
Pump Model PAGE E - 3..........................................................
i
TABLE OF CONTENTS
(continued)
Gearbox Assembly PAGE E - 5.....................................................
Gearbox Assembly (Cont'd) PAGE E - 7.............................................
Cross Member Kit PAGE E - 9......................................................
PUMP AND SEAL DISASSEMBLY PAGE E - 10............................................
Removing Pump and Gearbox PAGE E - 10...........................................
Suction Head and Wear Ring Removal PAGE E - 11....................................
Impeller Removal PAGE E - 11......................................................
Seal Removal PAGE E - 11..........................................................
Pump Casing Removal PAGE E - 11.................................................
PUMP AND SEAL REASSEMBLY PAGE E - 11............................................
Pump Casing Installation PAGE E - 12................................................
Seal Reassembly and Installation PAGE E - 12........................................
Impeller Installation PAGE E - 14.....................................................
Suction Head and Wear Ring Installation PAGE E - 15..................................
Installing Pump and Gearbox PAGE E - 15............................................
Final Pump Assembly PAGE E - 15..................................................
GEARBOX DISASSEMBLY PAGE E - 15..................................................
Air Shift Cover Disassembly PAGE E - 16.............................................
Drive Flange Removal PAGE E - 16..................................................
Output Shaft Disassembly PAGE E - 16...............................................
Input Shaft Disassembly PAGE E - 16................................................
Idler Shaft Disassembly PAGE E - 17.................................................
Impeller Shaft Disassembly PAGE E - 17..............................................
Cleaning and Inspecting Bearings PAGE E - 17.......................................
GEARBOX REASSEMBLY PAGE E - 18...................................................
Impeller Shaft Reassembly PAGE E - 18..............................................
Idler Shaft Reassembly PAGE E - 18.................................................
Input Shaft Reassembly PAGE E - 19.................................................
Output Shaft Reassembly PAGE E - 20...............................................
Air Shift Cover Reassembly PAGE E - 20..............................................
Pressure Testing PAGE E - 20.......................................................
Drive Flange Installation PAGE E - 21................................................
LUBRICATION PAGE E - 21.............................................................
Seal Assembly PAGE E - 21.........................................................
Trunnion Bracket PAGE E - 21.......................................................
Gearbox Assembly PAGE E - 21.....................................................
Intermittent (Normal Refueler) Duty Cycle PAGE E - 21.................................
Continuous Pumping Duty Cycle PAGE E - 22.........................................
ii
0 SERIES
OM-03179
INTRODUCTION
Thank You for purchasing a Gorman‐Rupp pump.
Read this manual carefully to learn how to safely
install and operate your pump. Failure to do so
could result in personal injury or damage to the
pump.
This manual will alert personnel to known proce
dures which require special attention, to those
which could damage equipment, and to those
which could be dangerous to personnel. However,
this manual cannot possibly anticipate and provide
detailed precautions for every situation that might
occur during maintenance of the unit. Therefore, it
is the responsibility of the owner/maintenance per
sonnel to ensure that only safe, established main
tenance procedures are used, and that any proce
dures not addressed in this manual are performed
only after establishing that neither personal safety
nor pump integrity are compromised by such prac
tices.
These pumps are 0 Series, enclosed impeller, self‐
priming centrifugal models, with straight‐in suction
without a suction check valve. They are designed
for vehicular mounting in petroleum service.
The pumps are close‐coupled to an integral, 1750
RPM (06C) or 19000 RPM (06D) split‐shaft gearbox
speed increaser with a 2.56:1 ratio. Power is trans
mitted to the gearbox through a customer‐installed
universal shaft assembly.
For information or technical assistance on the truck
chassis, contact the truck manufacturer's local
dealer or representative.
The following are used to alert maintenance per
sonnel to procedures which require special atten
tion, to those which could damage equipment, and
to those which could be dangerous to personnel:
Immediate hazards which WILL result in
severe personal injury or death. These
instructions describe the procedure re
quired and the injury which will result
from failure to follow the procedure.
Hazards or unsafe practices which
COULD result in severe personal injury
or death. These instructions describe
the procedure required and the injury
which could result from failure to follow
the procedure.
If there are any questions regarding the pump or
its application which are not covered in this man
ual or in other literature accompanying this unit,
please contact your Gorman‐Rupp distributor, or:
The Gorman‐Rupp Company
P.O. Box 1217
Mansfield, Ohio 44901-1217
Phone: (419) 755-1011
or:
Gorman‐Rupp of Canada Limited
70 Burwell Road
St. Thomas, Ontario N5P 3R7
Phone: (519) 631-2870
Hazards or unsafe practices which COULD
result in minor personal injury or product
or property damage. These instructions
describe the requirements and the possi
ble damage which could result from failure
to follow the procedure.
NOTE
Instructions to aid in installation, operation, and
maintenance or which clarify a procedure.
PAGE I - 1INTRODUCTION
0 SERIES OM-03179
SAFETY - SECTION A
This information applies to 0 Series
split‐shaft refueler pumps. Gorman‐
Rupp has no control over or particular
knowledge of the truck chassis which
will be used. Refer to the manual ac
companying the truck before attempt
ing to begin operation.
Because pump installations are seldom
identical, this manual cannot possibly
provide detailed instructions and pre
cautions for each specific application.
Therefore, it is the owner/installer's re
sponsibility to ensure that applications
not addressed in this manual are per
formed only after establishing that nei
ther operator safety nor pump integrity
are compromised by the installation.
Before attempting to open or service the
pump:
1. Familiarize yourself with this man
ual.
2. Switch off the vehicle ignition and
remove the key, or take other ac
tion to ensure that the pump will re
main inoperative.
3. Allow the pump to completely cool
if overheated.
4. Check the temperature before
opening any covers, plates, or
plugs.
5. Close the suction and discharge
valves.
6. Vent the pump slowly and cau
tiously.
7. Drain the pump.
any liquids which may damage the
pump or endanger personnel as a result
of pump failure.
If this pump is used with volatile and/or
flammable liquids, be certain proper
safety practices are followed before op
erating or servicing the pump. Provide
adequate ventilation, prohibit smoking,
wear static resistant clothing and
shoes. Clean up all fuel spills immedi
ately after occurrence.
Do not operate the pump against a
closed discharge valve for long periods
of time. If operated against a closed dis
charge valve, pump components will
deteriorate, and the liquid could come
to a boil, build pressure, and cause the
pump casing to rupture or explode.
If this pump is used with volatile and/or
flammable liquids, overheating may
produce dangerous fumes. Take pre
cautions to ensure the area surrounding
the pump is adequately ventilated. Al
low the pump to cool and use extreme
caution when venting the pump, or
when removing covers, plates, plugs, or
fittings.
This pump is designed for vehicular
mounting in petroleum service. Do not
attempt to pump corrosive materials, or
Do not remove plates, covers, gauges,
pipe plugs, or fittings from an over
heated pump. Vapor pressure within the
pump can cause parts being disen
PAGE A - 1SAFETY
OM-03179
0 SERIES
gaged to be ejected with great force. Al
low the pump to cool before servicing.
After the vehicle is positioned for pump
maintenance, block the wheels and set
the emergency brake before attempting
to disconnect the drive shaft or remove
the pump. Be sure the pump is properly
reinstalled and secure before opera
tion.
Never tamper with the governor to gain
more power. The governor establishes
safe operating limits that should not be
exceeded. Limit the maximum input
speed and operating range as indicated
on the Performance Curve on Page E‐1.
The gearbox provided on this pump is
designed for operation at a maximum in
put speed of 1750 RPM (06C) or 1900
RPM (06D). If operated at a higher RPM,
pump or gearbox components may be
destroyed.
Decals and tags vital to pump operation
were shipped loose with the pump. Affix
these decals in a prominent place vis
ible to the pump operator.
Never Run the pump dry of pumping me
dium. There must be a supply of liquid to
the pump at all times to prevent destruction
of the shaft seal faces.
This pump has been shipped dry of gear
box lubrication, except for a residual coat
ing from the testing process of 90 weight
gear oil and Dow Corning “Molykote M
Gear Guard” (an anti‐wear additive, con
sisting of molybdenum disulphide solid lu
bricants suspended in petroleum oil). The
gearbox must be lubricated before the
pump is operated (see LUBRICATION in
Section E).
PAGE A - 2 SAFETY
INSTALLATION - SECTION B
OM-031790 SERIES
Review all SAFETY information in Section A.
Since pump installations are seldom identical, this
section offers only general recommendations and
practices required to inspect, position, and ar
range the pump and piping.
Do not test or operate this pump and in
tegral gearbox before reading the in
stallation and operation instructions in
this manual.
This pump is an 0 Series, semi‐enclosed impeller,
self‐priming centrifugal model with straight‐in suc
tion, and an integral split‐shaft gearbox assembly.
The pump is designed for vehicular mounting in
petroleum service, where the liquid is supplied to
the pump under pressure. The gearbox replaces a
part of the main drive shaft connecting the trans
mission to the rear axle.
This design permits full utilization of engine power
to selectively operate either the pump or the rear
driving wheels on the vehicle. Both cannot be op
erated at the same time.
ing, check for loose hardware at mating sur
faces.
c. Carefully read all tags, decals, and markings
on the pump assembly, and perform all duties
indicated. Note the direction of rotation indi
cated on the pump. Check that the pump
shaft rotates in the required direction.
Only operate this pump in the direction in
dicated on the gearbox and/or the accom
panying decal. Reverse rotation of the
shaft will adversely effect pump perform
ance, and the pump and/or gearbox could
be seriously damaged.
d. Check levels and lubricate as necessary. Re
fer to LUBRICATION in the MAINTENANCE
AND REPAIR section of this manual and per
form duties as instructed.
e. If the pump and gearbox have been stored for
more than 12 months, some of the compo
nents or lubricants may have exceeded their
maximum shelf life. These must be inspected
or replaced to ensure maximum pump serv
ice.
For further assistance, contact your Gorman‐Rupp
distributor or the Gorman‐Rupp Company.
PREINSTALLATION INSPECTION
The pump assembly was inspected and tested be
fore shipment from the factory. Before installation,
inspect the pump for damage which may have oc
curred during shipment. Check as follows:
a. Inspect the pump and gearbox for cracks,
dents, damaged threads, and other obvious
damage.
b. Check for and tighten loose attaching hard
ware. Since gaskets tend to shrink after dry
If the maximum shelf life has been exceeded, or if
anything appears to be abnormal, contact your
Gorman‐Rupp distributor or the factory to deter
mine the repair or updating policy. Do not put the
pump into service until appropriate action has
been taken.
PUMP INSTALLATION
Pump Specifications
See Table 1 and 2 for the typical pump specifica
tions and gearbox data.
PAGE B - 1INSTALLATION
OM-03179 0 SERIES
Table 1. Pump Specifications
Pump Type Self‐priming, centrifugal with enclosed impeller................................
Suction 6-inch “Victaulic” fitting....................................................
Discharge 4-inch petroleum flange................................................
Nominal Capacity See the Performance Curve, Page E-1.............................
Impeller Shaft Seal Mechanical self‐lubricated........................................
Gearbox (Air Shift)
Air Pressure Required at Shift Cylinder 70-140 psi (5,1-10,2 kg/cm@) through 1/4” line
Gear Ratio 2.56:1 Speed Increase..................................................
Input shaft Rotation Clockwise (when viewed from the trunnion end)....................
Maximum Input Speed (See the Performance Curve, Page E-1)......................
Input & Output Shaft Heavy‐duty 2-3/4 inch - 10 spline..............................
Input & Output Flanges “Dana” Heavy‐Duty 1810 Series...............................
Lubrication 68 U.S. ounces (2011 ml) - See LUBRICATION, Section E for SAE grade....
16 fl. oz. (18 ml) `MolykoteR M Gear Guard' (Dow Corning)
Approx. Net Weight (06C1-GHH) 384 pounds (174 kg)...................................
Approx. Net Weight (06C3-GHH) 434 pounds (197 kg)...................................
Approx. Net Weight (06D1-GHH) 384 pounds (174 kg)...................................
Approx. Net Weight (06D3-GHH) 434 pounds (197 kg)...................................
Table 2. Through Torque Capacity Based On Shaft and Spline Size
Type of Engine Transmission Max Through Torque
Diesel Automatic 11,000
Diesel Manual 10,000
Gasoline Automatic 13,300
Gasoline Manual 12,300
Pump Mounting Dimensions
A 40-inch (1016 mm) cross member is provided
for mounting the output end of the gearbox, and a
trunnion mount is provided for the input end. This
Ft. Lbs.
(M. Kg.)
(1521)
(1383)
(1839)
(1701)
design provides a flexible three‐point suspension.
The trunnion mount prevents the chassis frame
twist from being transmitted through the gearbox.
See Figures 1 on page B-3 for the physical dimen
sions of the pump.
PAGE B - 2 INSTALLATION
DIMENSIONAL DRAWING
INPUT FROM TRANSMISSION ‐ 2.75 (69,9)
DIAMETER ‐ 10 SPLINE SHAFT WITH 1800
SERIES COMPANION FLANGE.
TOP
MOUNTED AIR
SHAFT
12.75
(323,8)
.625‐11 UNC THREAD
4 MOUNTING HOLES
7.09
(180,1)
.46
(11,7)
1.38
(35,1)
2.25
(57,2)
20.78
(527,8)
OUTPUT TO REAR AXLE
2.75 (69,9) DIA. - 10 SPLINE SHAFT
WITH 1800 SERIES COMPANION FLANGE.
7.25
(184,2)
3.625
(92,1)
2.75
(69,9)
.69
(17,5)
2.25
(57,2)
DIA., 2 HOLES
4.00
(101,6)
6.56
(166,6)
DIA.
DIA. DISCHARGE
4.31
(109,5)
5.56
(141,2)
6.44
(163,6)
OM-031790 SERIES
23.02
(584,1)
CROSS
MEMBER
3.50
(88,9)
DIMENSIONS:
(MILLIMETERS)
4.31
(109,5)
16.68
(423,7)
6.00
(152,4)
INCHES
20.00
(508,0)
1.69
(42,9)
VICTAULIC
SUCTION
FURNISHED
LENGTH
4.06
(103,1)
4.81
(122,2)
40.00
FURNISHED LENGTH
(1016,0)
10.64
(270,2)
1.94
(49,3)
2.00
(50,8)
8.70
(221,0)
22.57
(573,3)
17.76
(451,1)
1.00
(25,4)
1.19
(30,2)
.375-16 UNC STUDS
A 5.88 (149,4) DIA. B.C.
2.00
(50,8)
3.67
(93,2)
9.50
(241,3)
16.31
(414,3)
2.00 NPT
DRAIN PLUG
ON
2.50
(63,5)
10.89
(276,6)
.500 -13 UNC
THREAD
2 MOUNTING HOLES
1.00 (25,4) DEEP.
7.50
(190,5)
5.50
(139,7)
4.06
(101,6)
Figure 1. Pump Model 06C/D-GHH Pump Model Dimensions
PAGE B - 3INSTALLATION
OM-03179 0 SERIES
VEHICLE REQUIREMENTS
The following instructions apply equally to new in
stallations, rebuilds or retrofits.
After installation, do not attempt to test run
or operate the pump and integral gearbox
before reading OPERATION, Section B.
The gearbox was shipped dry of lubrica
tion, except for a residual coating from the
testing process of 90 weight gear oil and
Dow Corning `Molykote M Gear Guard'
(an anti‐wear additive, consisting of mo
lybdenum disulphide solid lubricants sus
pended in petroleum oil). Lubricate the
gearbox as instructed in LUBRICATION,
Section E before attempting to operate the
pump.
Tank Preparation
Brake Installation
When shifting from vehicle drive to pump
mode, or vice versa, input shaft rotation
must be limited to no less than 2 RPM or
no more than 15 RPM at the time of the
shift. Stopping the input shaft entirely may
cause a “butt‐shift” condition, which will
prevent the shift from occurring. Shaft rota
tion in excess of 15 RPM causes raking of
the gears. Either of these conditions can
damage gears, resulting in premature
gearbox failure.
Vehicles with automatic transmissions should be
equipped with a brake on the transmission shaft to
slow, but not stop, shaft rotation during shifting.
Air Cylinder Pressure
For proper operation of the gearbox, the air shift
device requires air pressure of 70 to 140 psi (5,1 to
10,2 kg/cm) at the gearbox. See Gear Shift Con
nections for further information.
It is essential that any tank scale, dirt, or other for
eign material be removed from the tank and piping
prior to pump installation. Failure to do so could re
sult in clogging or damage to the pump.
Damage to the pump resulting from debris
in the suction line will not be covered by the
pump warranty.
Before connecting the suction and dis
charge piping, carefully check the storage
tank and piping for construction debris
such as nuts, bolts, wire, weld slag, and
other foreign material. Install a commer
cially available 80 mesh screen in the suc
tion line to prevent debris from entering the
pump.
POSITIONING PUMP
Lifting
Pump unit weights will vary depending on the
mounting and drive provided. Check the shipping
tag on the unit packaging for the actual weight, and
use lifting equipment with appropriate capacity.
Drain the pump and remove all customer‐installed
equipment such as suction and discharge hoses
or piping before attempting to lift existing, installed
units.
The pump assembly can be seriously
damaged if the cables or chains used to lift
and move the unit are improperly wrapped
around the pump.
Due to the confined mounting location,
specialized equipment such as a transmis
PAGE B - 4 INSTALLATION
OM-031790 SERIES
sion jack with custom brackets should be
used to lift and position the pump and
gearbox.
Mounting Location
The following factors must be considered when se
lecting a mounting location for the pump.
a. Mounting brackets
b. Universal joint angles
c. Shift linkage
d. Piping
e. Ground clearance
f. Accessibility of pump and gearbox for service..
Any damage to the pump or gearbox resulting from
improper mounting and installation is not covered
by the Gorman‐Rupp Warranty.
Mounting Brackets
The customer must furnish two cross members
which fit between the vehicle chassis side rails (see
Figure 2). They must be heavy enough to support
the weight of the pump assembly and provide easy
access for pump maintenance.
Secure the rear cross member rigidly to the pump
and gearbox using a fabricated mounting bracket
(customer‐furnished). The mounting bracket must
fasten to the threaded holes located in the pump
casing above the pump suction, and in the top of
the gearbox housing. The bracket and cross mem
ber must not obstruct pump operation or impede
removal of the pump casing during maintenance.
The rear cross member or mounting
bracket must not interfere with movement
of the air shift indicator shaft (located on
top of the gearbox). If necessary, drill a
1.25 inch (31,8 mm) diameter hole through
the cross member or bracket to provide
clearance.
RUBBER (MOUNTED
BY CUSTOMER)
1.25 IN. [31,8 mm] DIA.
HOLE FOR AIR SHIFT
POSITION INDICATOR
SHAFT
29 IN.* [736,6 MM] APPROX.
ROAD CLEARANCE
OUTPUT TO REAR AXLE
REAR CROSS MEMBER FURNISHED 40 IN. [1016 MM]
LONG - CUSTOMER TO CUT TO DESIRED LENGTH FOR
INSTALLATION
SHIFT COVER
TRUNNION BRACKET
CLOCKWISE INPUT ROTATION
DRIVE INPUT FROM
TRANSMISSION
FRONT CROSS MEMBER
(SUPPLIED BY CUSTOMER)
16.31 IN.* [414,3 MM] APPROX. ROAD
CLEARANCE
NOTE: DIMENSIONS MARKED WITH AN ASTERISK (*) MAY BE ALTERED TO FACILITATE INSTALLATION OF UNIT
Figure 2. Typical Pump Mounting on Vehicle Chassis
PAGE B - 5INSTALLATION
OM-03179 0 SERIES
The drive input end of the gearbox is fitted with a
trunnion which prevents chassis frame twist from
being transmitted through the gearbox. Mount the
trunnion to the front cross member (not supplied)
to support the drive input end of the pump. When
mounting the trunnion, make certain that it will not
interfere with the input drive flange. The trunnion
mounting foot must be directed toward the input
flange.
Position the cross members and mounted pump
on the side rails of the chassis. The cross members
must be mounted with rubber or other vibration‐
dampening material when secured to the side
rails.
Do not secure the cross members to the side rails
before establishing the exact location and position
of the air shift rod and shift indicator connections.
Be careful not to put the pump in a bind from front
to rear during mounting. Improper alignment could
result in bearing or gear failure, or gearbox break
age (see Drive Shaft Alignment).
minimum. A joint angle of 1 degree is required for
proper needle bearing circulation, but excessive
angles cause accelerated wear and require a lower
maximum operating speed (see Table 3).
Table 3. Joint Angle/Maximum RPM
JOINT ANGLE MAXIMUM
SPEED
5 degrees 5000 RPM
6 degrees, 30 minutes 4000 RPM
8 degrees 3000 RPM
Align the gearbox with the transmission and the
rear axle to obtain the optimum universal joint
angles. See Figure 3 for drive shaft alignment.
Drive Flanges
The input and output shafts on the gearbox (2-3/4
inch, 10‐spline) are equipped with heavy‐duty
Dana 1810 Series flanges. The shaft splines are
designed to produce a tight interference fit with the
drive flange. This fit is intentional to eliminate fret
ting corrosion.
For instructions on removing and installing the
flanges, see the specific areas in MAINTENANCE
AND REPAIR, Section E.
DRIVE SHAFT AND
LINKAGE CONNECTIONS
Drive Shaft Alignment
To promote maximum universal joint and bearing
life, the universal joint angles must be kept to a
Be certain the rear axle position when the
vehicle is empty or fully loaded will not
cause excessive universal joint angles, or
cause the drive shaft slip joints to bottom
out.
When installing and/or aligning univer
sal shaft assemblies, switch off the ve
hicle ignition and remove the key to en
sure that the pump will remain inopera
tive.
PAGE B - 6 INSTALLATION
LUGS MUST BE IN LINE, REGARDLESS
OF OPERATING ANGLE SHOWN BELOW
LUG ALIGNMENT
SHAFTS PARALLEL, ANGLES EQUAL
OM-031790 SERIES
SHAFTS NOT PARALLEL, ANGLES EQUAL
Figure 3. Drive Shaft Alignment
The alignment of the pump and its power source is
critical for trouble‐free mechanical operation. Be
fore checking alignment, make sure that the gear
box mounting bolts are tight.
When connecting the universal joint drive shaft as
sembly to a PTO unit, install, support, and align the
drive shaft in accordance with the manufacturer's
instructions. The pump and the drive power source
are generally positioned so that shaft centerlines
are parallel and horizontal.
Make sure the horizontal and vertical joints are
equal. Limit the angles to 1 to 3 degrees using a
short coupled joint, and less than 8 degrees with a
double joint assembly. The maximum operating
angle should not exceed 15 degrees (see Figure
3).
NOTE
Install a short coupled slip joint on the input side
and a double joint with slip on the output side of the
gearbox to attain the prescribed angles and elimi
nate tensile stress on the shaft.
The input and output shafts should be completely
subassembled and checked for straightness and
balance before installation. Also check the univer
sal joint yokes for proper alignment.
Check the direction of rotation of the PTO unit be
fore starting the pump. The drive shaft must rotate
in the direction shown on the body of the pump,
gearbox, and/or decals, tags, and labels.
Gear Shift Connections
After the pump is mounted to the chassis, hook up
the air shift rod to the proper control stations.
PAGE B - 7INSTALLATION
OM-03179 0 SERIES
top of the air shifter cover is for pump operation.
Seal all hose fittings with “Permatex” or equivalent
compound.
Decals and tags vital to pump operation
were shipped loose with the pump.
These decals must be affixed in a promi
nent place visible to the pump operator.
Proper operation of the gearbox air shift requires
1/4-inch air lines and air pressure of 70 to 140 psi
(5,1 to 10,2 kg/cm) at the gearbox. The air line
connection at the end cap of the air cylinder is for
vehicle operation, and the air line connection at the
When activated, the shifter rod travels through a
hole in the rear cross member. A customer‐
supplied shift indicator (mechanical, electrical, or
air operated device) should be installed in this area
to indicate shifter mode to the pump operator. A
tapped hole is provided in the shaft for conve
nience.
See Figure 4 and 5 for approximate shaft travel and
hole size. See Figure 4, Section E for Air Shift Kit
parts.
Figure 4. Air Shifter Shaft Detail
Figure 5. Optional Manual Shifter
PAGE B - 8 INSTALLATION
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