Delavan HD Magnum Series User manual

HD Magnum Series
Advanced Sprayer Pumps with:
• Exclusive Front & Rear Wear Rings
• Oversized Bearings
• Two Piece Pump & Motor Design with HD Splined Coupling,
Nylon Impeller, & Viton/Ceramic Seals.
Hydraulically Driven
Centrifugal Pumps
• Installation • Operation • Repair • Parts
Delavan Pumps Inc.
1228 Chestnut Avenue • Minneapolis, MN 55403
Toll Free: 1-866-DELAVAN (335-2826) • PH: 612-333-3189
Toll Free Fax: [phone] • Fax: [phone]
delavanagpumps.com
Document HD Magnum Install 12.1.05

1228 Chestnut Avenue • Minneapolis, MN 55403
Delavan Ag Pumps
Document HD Magnum Install 3.15.06
HD Magnum Series
2
HD Magnum Series
Model Number Designations
Pump Size Port Size - FNPT (inches)
Inlet: Outlet:
M125 1-1/4 1
M150 1-1/2 1-1/4
M200 2 1-1/2
Material
C Cast iron with nylon impeller and Viton/ceramic seal (standard)
SStainless steel with nylon impeller and Viton/silicon carbide seal (standard)
Hydraulic Motor*
PM21 5-7 GPM, rear ports (for M125 only)
PM37 7-10 GPM, rear ports (for M125 & M150 only)
PM45 11-13 GPM, rear ports
PM58 13-15 GPM, rear ports
PM58B 13-15 GPM, side ports
PM70B 15-17 GPM, side ports
Optional Adders
-VS Viton/silicon carbide seal (optional for cast iron models)
-PI Polypropylene impeller
-NS Nylon impeller with stainless steel insert
-PS Polypropylene impeller with stainless steel insert
* All hydraulic motors are designed for open and closed center systems. Consult factory for other motor options.
Performance
Hydraulic Hydraulic
Pump Motor Oil Flow Pump Flow GPM @ Rated PSIG
Size Size (GPM) 10 20 30 40 50 60 70 80 90 100 110 120 130 140
M125 PM21* 5 58 55 51 38 31 17
665 64 63 59 54 49 42 34 26 15
773 72 70 69 68 64 59 53 45 38 30 22
PM37 7 69 68 66 63 55 44 25 16
878 76 75 71 69 61 52 34 15
9 79 77 76 73 70 63 59 46 30 8
M150 PM37* 7 155 144 127 105 65 21
8175 170 161 145 126 104 78 43
9180 172 163 151 138 115 88 64 39
PM45 11 180 173 165 152 136 123 101 82 61 32 8
12 185 177 169 160 151 138 121 103 82 63 45 11
13 191 182 174 168 159 145 133 117 101 86 60 36
PM58 13 172 165 159 148 136 124 106 86 66 37 12
PM58B 14 180 172 164 156 147 135 120 104 86 69 51 15
15 185 174 165 159 150 141 131 118 101 88 63 38
PM70B 15 163 157 152 149 145 128 100 64 10
16 171 164 156 153 149 144 135 117 79 51
17 176 167 159 155 150 146 139 121 82 53
M200 PM45* 11 229 221 217 193 180 149 128 111 75 42 29
12 240 136 230 220 205 194 151 137 123 93 81 41 14
13 245 238 229 216 199 186 167 146 122 108 76 55 17
PM58 13 232 226 214 200 184 161 139 110 79 36
PM58B 14 235 229 222 204 190 169 145 124 100 70 44 12 10
15 240 232 226 209 195 179 156 135 110 84 53 32 20 10
PM70B 15 163 157 152 149 145 128 100 64 10
16 171 164 156 153 149 144 135 117 79 51
17 176 167 159 155 150 146 139 121 82 53
*Note: Smaller displacement motors on larger pumps can cause pressures on hydraulic motor to exceed recommended manufacturer’s specications.
Consult factory for details.

Toll Free: 1-866-DELAVAN (335-2826) • PH: 612-333-3189 • Toll Free Fax: [phone] • Fax: [phone]
Document HD Magnum Install 3.15.06
Hydraulically Driven Centrifugal Pumps
3
Size M125
Inches (mm)
Size M150
Inches (mm)
Size M200
Inches (mm)
1-1/4
NPT
1" NPT
4.37
(111.0)
5.25
(133.4)
1/2" NPT
(2)
1/2" NPT
(2)
SIDE PORT WITH
BYPASS CONTROL
REAR PORT
4.68
(118.9)
5.41
(137.3)
Ø7.50
(190.5)
8.64
(219.3)
4.00
(101.6)
3.06
(77.8)
2.19
(55.6)
13.16
(334.2)
4.63
(117.6)
0.56
(14.2)
Slot (2)
4.71
(119.5)
3.50
(88.9)
1-1/4
NPT
8.75
(222.1)
4.37
(111.0)
5.25
(133.4)
1-1/2"
NPT 1/2" NPT
(2)
1/2" NPT
(2)
5.27
(133.8)
0.56
(14.2)
Slot (2)
SIDE PORT WITH
BYPASS CONTROL
REAR PORT
4.68
(118.9)
5.41
(137.3)
2.56
(65.0)
Ø7.50
(190.5)
13.79
(350.3)
4.83
(122.6)
3.50
(88.9)
1-1/2
NPT
8.75
(222.1)
4.37
(111.0)
5.25
(133.4)
2" NPT
1/2" NPT
(2)
1/2" NPT
(2)
5.27
(133.8)
0.56
(14.2)
Slot (2)
SIDE PORT WITH
BYPASS CONTROL
REAR PORT
4.68
(118.9)
5.41
(137.3)
2.56
(65.0)
Ø7.50
(190.5)
13.79
(350.3)

1228 Chestnut Avenue • Minneapolis, MN 55403
Delavan Ag Pumps
Document HD Magnum Install 3.15.06
HD Magnum Series
4
Plumbing Recommendations
Pump Installation Guidelines
1. Mount the pump below the liquid level in the tank to
ease priming. Install a 20 mesh suction filter and tank
shutoff on the pump inlet.
2. The volute casing can be rotated to have the discharge
in any of four positions. The top position is best to aid in
pump priming by eliminating air from the pump.
3. Pump ratings are based on using adequate size hose.
We recommend using hose size that is equal to the port
size or larger. Smaller hose can be used but will affect
the pump performance.
4. Four 1/8” NPT plug vent lines are located on the front of
the pump. Remove the 1/8” NPT plug positioned at the
highest point on the pump. Install a small diameter hose
or tube (typically 1/8”) back to the tank to allow air to be
vented from the pump. This allows the pump to prime
properly and decreases potential pressure fluctuations.
Caution:
Do not run the pump dry! Make sure pump is filled with
liquid when starting. Shut off the pump when the tank is
empty. Running the pump dry will damage the seals!
Motor Installation Guidelines
1. Refer to the Pump/Tractor Selection Guide to determine
the correct installation section to follow.
2. For all models, remove the cap plugs from the motor
ports. When assembling the hydraulic hoses to the
motor, make sure to keep the hydraulic connections
clean. Do not allow paint, dirt or metal particles to fall
into the ports.
3. Make sure the hydraulic quick disconnects are clean
and completely engage when coupled to the tractor
hydraulics.
4. Make sure that the hydraulic connections are to the
correct port. The ports are clearly marked IN and OUT.
Caution:
Do not run the pump at deadhead (pump primed but no
outlet flow) for more than two minutes. Pump seals will
overheat and may be damaged due to heat buildup.
Pressure
Tap *
Pressure
Gauge
Y-Line
Strainer
Electric Boom
Control Valves *
Y-Line
Strainer
Agitation
Line
Control Console *
To Spray
Booms
Centrifugal
Pump
Anti-Vortex
Fitting
Ball Valve
Electric Pressure
Regulator Valve *
Tank
Agitator
*Note: An electronic control
console, pressure regulating
valve, boom valves and pressure
gauge feedback loop can be
used use with the HD Magnum
centrifugal pump to make a
complete spray system. To
regulate pressure to the boom,
simply adjust the pressure setting
at the control console. The
pressure gauge feedback loop
indicates the desired spraying
pressure. Open the bypass or
agitation line and set the desired
agitation ow. If the desired
spraying pressure decreases,
adjust the pressure at the control
console as needed.

Toll Free: 1-866-DELAVAN (335-2826) • PH: 612-333-3189 • Toll Free Fax: [phone] • Fax: [phone]
Document HD Magnum Install 3.15.06
Hydraulically Driven Centrifugal Pumps
5
Typical Flow Control
for Closed Center
(LS) Systems
Closed and Load Sensing Operation
1. With the pump installed on the sprayer (as shown in the
Plumbing Recommendations illustration on the facing
page), fill the pump with liquid by opening the inlet ball
valve.
2. Connect the hydraulic hoses to the remote outlet on the
tractor. Use the motor remote outlet if your tractor has
one.
3. Adjust the flow control on the tractor remote outlet to the
lowest flow position. Failure to start in the lowest flow
position could damage the pump and void the warranty.
4. Open the agitation line all the way open and and open
the boom control valves. Start the tractor and increase
the engine speed to the desired speed used when
spraying. Engage the hydraulic remote to start the
pump. At this time, make sure the pump is primed.
5. Adjust the sprayer pressure. Turn off the agitation line
and with the boom control valves open, adjust the flow
control to get the desired spraying pressure. Do not
exceed the sprayer pump pressure rating.
6. Open the agitation line until the desired agitation is
achieved.
7. Readjust the spray pressure by adjusting the hydraulic
flow control on the tractor.
Open Center Operation
1. With the pump installed on the sprayer (as shown in the
Plumbing Recommendations illustration on the facing
page), fill the pump with liquid by opening the inlet ball
valve.
2. Connect the hydraulic hoses to the remote outlet on the
tractor.
3. If the pump is model M200-39070-2 being used with a
large open center system with a flow rate over 15 GPM,
then open the bypass screw on the on the side of the
motor two turns.
4. Open the agitation line all the way, and open the boom
control valves. This will assist the pump in priming.
5. Start the tractor and let the engine run at idle.
6. Increase the engine speed to the desired speed for
spraying.
7. Close the agitation line until the desired agitation is
achieved.
8. Adjust the spray pressure with the boom control valve.
9. If using the bypass screw on the motor, close the bypass
as much as possible without exceeding the desired
maximum spraying pressure or the rating of the pump.
On some open center systems, operation of the sprayer
pump will lower the system pressure to a point where the
attempted operation of additional hydraulic implements
at the same time results in poor operation of both. In this
case, one of the functions will have to be turned off to make
the other one work correctly.

1228 Chestnut Avenue • Minneapolis, MN 55403
Delavan Ag Pumps
Document HD Magnum Install 3.15.06
HD Magnum Series
6
Troubleshooting Guide
Problem Causes and Remedies
Pump Doesn’t Deliver Flow Suction strainer is clogged
  • Cleanstrainer
Loss of prime
  • Makesurepumpisbelowtheliquidlevel
  • Installanti-vortexttingintank
  • Openventlinefromthetop-mostplugonthepumpvoluteto 
bleed off air
  • Checksuctionlineforleaks
Collapsed suction hose
  • Replacewithwirereinforcedhose
  • Uselargerdiameterhose
Impeller clogged
  • Removevolutecasingandcheckforforeignmaterial
Leakage Between Centrifugal Pump Pump seal is leaking
and Hydraulic Motor • Disassemblevoluteandimpellerandreplaceseal
Hydraulic motor seal is leaking
  • Removefromcentrifugalpumpandreplacesealonthemotor
Lack of Pressure from Centrifugal Pump Insufficient Motor Speed
  • Adjusthydraulicowcontrol
Make sure pump is fully primed
  • See“Lossofprime”above
Check for clogged strainers
Excessive restriction on inlet hoses
  • Uselargersizehose,ballvalvesandstrainers
Bypass screw is turned out too far (open center systems)
  • Re-adjustbypassscrewsettingbyturningitin
Cannot Reduce Spraying Pressure Excessive motor speed
to Desired Range • Adjusthydraulicoilowtomotor,usingowcontrol
Motor on open center systems is too small
  • Checkselectionguideforcorrectmotor
Hydraulic Fluid Becomes Too Hot Check hydraulic fluid levels
Check hydraulic filters and replace if clogged
Incorrect motor application
  • Checkselectionguideforcorrectmotorapplication
Check hydraulic hose sizes
  • Hosesshouldbeatleast1/2”
  • Use3/4”forhoserunsover15ft.orow
rates higher than 15 GPM
Check temperature with gauge
  • Makesuretemperatureis160°orless
Hydraulic Motor Operates Erratically Liquid pressure varies
  • Checkforairleaksininletofpump
  • Checkforproperuidlevelsintractor
  • Checkforhydraulicmotorwear
  • Makesuretractorhydraulicsystemhascleanlters

Toll Free: 1-866-DELAVAN (335-2826) • PH: 612-333-3189 • Toll Free Fax: [phone] • Fax: [phone]
Document HD Magnum Install 3.15.06
Hydraulically Driven Centrifugal Pumps
7
Repair Information
Replacing Hydraulic Motor Shaft Seal
1. Remove the four bolts on the
volute using a 9/16” wrench.
Fig. 1.
2. Remove the impeller nut
using a 3/4” socket. Hold the
impeller from turning by using
a screwdriver in vanes of the
impeller. Fig. 2.
3. Remove the impeller key using
pliers and screwdriver. Fig.
3.
4. Remove the spring assembly
from the shaft by pulling it off
with your hand. Fig. 4.
5. Work the outer seal half off
the shaft carefully with a
screwdriver. Fig. 5.
6. Work the inner seal half off out
of the housing carefully with a
small flat bladed screwdriver.
Break the ceramic with a
hammer and screwdriver if
necessary to remove. Fig. 6.
7. Reassemble with a new seal
kit. Install new ceramic seal
half in the bearing housing
with the ceramic facing out.
8. Carefully slide the carbon seal
half over the shaft so that the
carbon and ceramic are facing
each other.
9. Complete the seal assembly
in the reverse order shown.
Install a new o-ring on the
frame housing for the volute.
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Replacing Pump Mechanical Seal
1. Remove motor from the
pump using a 9/16” wrench.
Fig. 7.
2. Using an allen wrench,
unscrew the four allen bolts
and remove the front flange.
Fig. 8.
3. Remove the mechanical
seal half and o-ring from the
flange. Fig. 9.
4. Remove the mechanical
seal half, o-ring, spacer and
spring from the motor.
5. Reassemble with a new seal
kit in the reverse order. Fig.
10.
Fig. 7
Fig. 8
Fig. 9
Fig. 10

1228 Chestnut Avenue • Minneapolis, MN 55403
Delavan Ag Pumps
Document HD Magnum Install 3.15.06
HD Magnum Series
8

Toll Free: 1-866-DELAVAN (335-2826) • PH: 612-333-3189 • Toll Free Fax: [phone] • Fax: [phone]
Document HD Magnum Install 3.15.06
Hydraulically Driven Centrifugal Pumps
9
1 Volute Casing .......................................... 1
Size M125: 1-1/4”..................... I34-001
Size M150: 1-1/2”..................... I37-025
Size M200: 2” ........................... I39-025
2 1/8” NPT Pipe Plug ....................... 25785 4
3 Caution Label ................................. 35276 1
4 Frame O-ring Seal ....................... I34-003 1
5 3/16” Square Key......................... I34-005 1
6 Hex Nut ................................................... 1
Size M125: 3/8-24.................... I34-007
Size M150 & M200: 1/2-13 ...... I37-005
7 Frame .......................................... I34-012 1
8 3/8-16 X 3/4” Hex Head Screw ...... 34916 4
9 Shaft........................................................ 1
Size M125 ................................ I34-014
Size M150 & M200: .................. I37-014
10 Sealed Ball Bearing......................... 16228 2
11 Internal Retaining Ring..................... 26548 1
12 3/8-16 X 1” Heax Head Screw...... I34-017 2
13 Outlet NPT Adapter Assembly
with Check Valve 7/8-14 X 1/2” ... I34-060 1
14 Inlet NPT Adapter 3/4-16 X 1/2” ... I34-050 1
Item Part
# Description Number Qty
15 Hydraulic Motor ........................................ 1
With Rear Ports:
5-7 GPM PM21 Motor............... I34-029
7-10 GPM PM37 Motor............. I34-030
10-13 GPM PM45 Motor........... I34-031
12-15 GPM PM58 Motor........... I34-032
With Side Ports:
12-15 GPM PM58B Motor ........ I34-033
13-18 GPM PM70B Motor ........ I34-034
16 Seal Assembly.......................................... 1
Size M125: Viton/Silicon Carbide .. I34-010
Size M125: Viton/Ceramic ............ I34-011
Size M150 & M200: Viton/Silicon
Carbide........................................ I37-010
Size M150 & M200: Viton/
Ceramic ....................................... I37-011
17 Impeller Assembly..................................... 1
Size M125: 1-1/4” Nylon .............. I34-040
Size M125: 1-1/4” Polypropylene.. I34-043
Size M150: 1-1/2” Nylon .............. I37-040
Size M150: 1-1/2” Polypropylene with
SS Support Insert ........................ I37-043
Size M150: 1-1/2” Polypropylene.. I37-047
Size M200: 2” Nylon..................... I39-040
Size M200: 2” Polypropylene with
SS Support Insert ......................... I39-043
Size M200: 2” Polypropylene ........ I39-049
18 Adapter O-ring Seal .................................. 1
3/4” .......................................... 31351-15
7/8” .......................................... 31351-16
Item Part
# Description Number Qty
Repair Kits
Part Number Description
RK-M125VC Repair Kit with Viton/Ceramic Seals for M125
RK-M125VS Repair Kit with Viton/Silicon Carbide Seals for M125
RK-M215VC Repair Kit with Viton/Ceramic Seals for M150 & M200
RK-M215VS Repair Kit with Viton/Silicon Carbide Seals for M150 & M200
904003 Hydraulic Motor Bypass Valve Assembly
904804 Hydraulic Motor Seal Kit
904824 Hydraulic Motor Bearing Kit (includes bearings and seal kit) ......

1228 Chestnut Avenue • Minneapolis, MN 55403
Delavan Ag Pumps
Document HD Magnum Install 3.15.06
HD Magnum Series
10
Returns
All Delavan products are warranted against manufacturing
defects (see warranty, below). In the event you feel you
have a warranty-covered, returnable item, return the pump
to your dealer, who will replace a warrantable pump for you.
Delavan’s“NoHassleWarranty”putsyoubackintheeld
sooner!
Important Instructions for Returning
Pumps
When you return your pump for warranty or for repair,
you must always do the following:
1. Flush chemical residue from the pump (best done in
the field).
2. Tag pump with type of chemicals having been
sprayed.
3. Include complete description of operation problem,
such as how pump was used, symptoms of
malfunction, etc.
Since pumps can contain residues of toxic chemicals
these steps are necessary to protect all the people
who handle return shipments, and to help pinpoint the
reason for the breakdown.
Bulletin: 51300-MN 7/7/04

Toll Free: 1-866-DELAVAN (335-2826) • PH: 612-333-3189 • Toll Free Fax: [phone] • Fax: [phone]
Document HD Magnum Install 3.15.06
Hydraulically Driven Centrifugal Pumps
11
Standard Warranty
Delavan warrants all Roller Pumps, Turbo-90™Turbine
Pumps, HD Magnum™Centrifugal Pumps, and PowerFLO™
Diaphragm Pumps for a period of one year from date of
manufacture.
All products sold by Delavan are warranted only to purchasers
from Delavan for resale or for use in purchasers’ own
business or original equipment manufacture, against defects
in workmanship or materials under normal use, maintenance
and service (rental use excluded).
The sole and exclusive obligation of Delavan under this or
any implied warranty shall be to replace or, at its option, to
repair, without charge, any product which is determined by
Delavan to be defective in workmanship or materials after
the product is returned to the Delavan factory*, shipping
costs prepaid.
In no event shall Delavan be liable to any person for indirect
or consequential damages or for injury or commercial loss
resulting from any use or inability to use any Delavan product.
Delavan expressly negates any other warranty, express or
implied, including any warranty of merchantability or fitness
for a particular purpose, or arising from any course of dealing
or custom or usage of trade.
No person, including any dealer or representative of Delavan,
is authorized to make any representation or warranty on behalf
of Delavan in addition to or inconsistent with these provisions.
Purchasers to whom these provisions apply agree to hold
Delavan harmless from claims by their customers in excess
of the obligations of Delavan expressly set forth herein.
Delavan Exclusive
“No-Hassle” Warranty
• Delavan’s “No Hassle Warranty” gives
you longer warranty coverage!
Register your Delavan pump on our website with proof of
purchase and your warranty on all Roller Pumps, Turbo-90™
Turbine Pumps, HD Magnum™Centrifugal Pumps, and
PowerFLO™Diaphragm Pumps is extended to one year
from date of purchase (instead of from date of manufacture
as provided in our standard warranty. No Hassle Warranty
not to exceed two years in any event).
• Delavan’s “No Hassle Warranty” puts
you back in the eld sooner!
If your Delavan pump fails during the No Hassle Warranty
period, you have an easy, simple remedy:
Return the pump to your dealer who will contact the
factory and determine warranty replacement.

1228 Chestnut Avenue • Minneapolis, MN 55403
Toll Free: 1-866-DELAVAN (335-2826) • PH: 612-333-3189
Toll Free Fax: [phone] • Fax: [phone]
Website: www.delavanagpumps.com
Document HD Magnum Install 3.15.06