Nordson Rhino SD2 Reference guide

NORDSON CORPORATION •AMHERST, OHIO •USA
Rhinor
SD2/XD2 Pumps
Customer Product Manual
Part 1073520-15
Issued 3/18
For parts and technical support, call the Nordson
Industrial Coating Systems Customer Support Center at
(800) 433−9319, or contact your local Nordson Representative.
This document is subject to change without notice.
Check http://emanuals.nordson.com/finishing for the latest version.

Part 1073520-15 E2018 Nordson Corporation
Table of Contents
Safety 1.......................................
Qualified Personnel 1.........................
Intended Use 1..............................
Regulations and Approvals 1..................
Personal Safety 1............................
High-Pressure Fluids 1.....................
Fire Safety 2................................
Halogenated Hydrocarbon Solvent Hazards 2.
Action in the Event of a Malfunction 2...........
Disposal 2..................................
Description 3..................................
Theory of Operation 4........................
Air Motor 4...............................
Hydraulic Section 4........................
Repair 7......................................
Consumable Items 7.........................
Break Down the Pump 8......................
Repairs to the Hydraulic Section 8...........
Repairs to the Air Motor 8...................
Standard and Temperature Conditioned Hydraulic
Sections 10..................................
Disassemble the Hydraulic Section 10.........
Assemble the Hydraulic Section 10...........
Rebuild the Packing Gland 12..................
Stainless Steel Hydraulic Section 14.............
Disassemble the Hydraulic Section 14.........
Assemble the Hydraulic Section 14...........
Air Motor 16..................................
Replace the Trip-Rod U-Cup 16..............
Replace a Pilot Valve 18....................
Replace the Supply
Tube Quad- and O-Rings 20.................
Replace the Piston Rod
Retainer U-Cup and O-Ring 20...............
Replace the Piston Assembly 22.............
Assemble the Pump 24........................
Parts 26.......................................
Common Parts 26.............................
Air Motor 28..................................
5.8 Cubic Inch Standard and
Temperature Conditioned Hydraulic Sections 34...
8.1 Cubic Inch Standard and
Temperature Conditioned Hydraulic Sections 36...
8.1 Cubic Inch Stainless Steel Hydraulic Section 38
Tools 39.....................................
Kits 40.......................................
Mounting Hardware 41.........................
30/55-Gallon Drum Unloaders 41.............
5-Gallon Pail Unloaders 41..................
Specifications 42...............................
Air Motor 42..................................
Hydraulic Section 42..........................
Air Requirements 43...........................
Pneumatic Schematic 44.......................
Preventive Maintenance 45......................
Contact Us
Nordson Corporation welcomes requests for information, comments, and
inquiries about its products. General information about Nordson can be
found on the Internet using the following address:
http://www.nordson.com.
Address all correspondence to:
Nordson Corporation
Attn: Customer Service
555 Jackson Street
Amherst, OH 44001
Notice
This is a Nordson Corporation publication which is protected by copyright.
Original copyright date 2006. No part of this document may be
photocopied, reproduced, or translated to another language without the
prior written consent of Nordson Corporation. The information contained
in this publication is subject to change without notice.
Trademarks
Nordson, the Nordson logo, and Rhino are registered
trademarks of Nordson Corporation.
All other trademarks are the property of their respective owners.

Change Record i
Part 1073520-15
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Change Record
Revision Date Change
A09 6/09 Removed data on customer-specific pumps 1082087, 1082225, 1082478, 1082503,
and 1084887. Refer to manual 1096339A for customer-specific pump data.
A10 8/09 Add part number for new rod assembly design.
A11 11/10 Add new Drive Train Kit part numbers.
A12 4/13 Add XD2 Stainless Steel Packing Gland internal components kit 1603003.
13 10/15 Added kit part numbers to parts list.
14 9/16 Updated and added kit part numbers.
15 3/18 Changed part number 900223 to 1612251.

Change Record
ii
Part 1073520-15 E2018 Nordson Corporation

Rhino SD2/XD2 Pumps 1
Part 1073520-15
E2018 Nordson Corporation
Safety
Read and follow these safety instructions. Task- and
equipment-specific warnings, cautions, and instructions
are included in equipment documentation where
appropriate.
Make sure all equipment documentation, including these
instructions, is accessible to persons operating or
servicing equipment.
Qualified Personnel
Equipment owners are responsible for making sure that
Nordson equipment is installed, operated, and serviced
by qualified personnel. Qualified personnel are those
employees or contractors who are trained to safely
perform their assigned tasks. They are familiar with all
relevant safety rules and regulations and are physically
capable of performing their assigned tasks.
Intended Use
Use of Nordson equipment in ways other than those
described in the documentation supplied with the
equipment may result in injury to persons or damage to
property.
Some examples of unintended use of equipment include
Susing incompatible materials
Smaking unauthorized modifications
Sremoving or bypassing safety guards or interlocks
Susing incompatible or damaged parts
Susing unapproved auxiliary equipment
Soperating equipment in excess of maximum ratings
Regulations and Approvals
Make sure all equipment is rated and approved for the
environment in which it is used. Any approvals obtained
for Nordson equipment will be voided if instructions for
installation, operation, and service are not followed.
Personal Safety
To prevent injury follow these instructions.
SDo not operate or service equipment unless you are
qualified.
SDo not operate equipment unless safety guards,
doors, or covers are intact and automatic interlocks
are operating properly. Do not bypass or disarm any
safety devices.
SKeep clear of moving equipment. Before adjusting or
servicing moving equipment, shut off the power
supply and wait until the equipment comes to a
complete stop. Lock out power and secure the
equipment to prevent unexpected movement.
SRelieve (bleed off) hydraulic and pneumatic pressure
before adjusting or servicing pressurized systems or
components. Disconnect, lock out, and tag switches
before servicing electrical equipment.
SWhile operating manual spray guns, make sure you
are grounded. Wear electrically conductive gloves or
a grounding strap connected to the gun handle or
other true earth ground. Do not wear or carry
metallic objects such as jewelry or tools.
SIf you receive even a slight electrical shock, shut
down all electrical or electrostatic equipment
immediately. Do not restart the equipment until the
problem has been identified and corrected.
SObtain and read Safety Data Sheets (SDS) for all
materials used. Follow the manufacturer’s
instructions for safe handling and use of materials,
and use recommended personal protection devices.
SMake sure the spray area is adequately ventilated.
STo prevent injury, be aware of less-obvious dangers
in the workplace that often cannot be completely
eliminated, such as hot surfaces, sharp edges,
energized electrical circuits, and moving parts that
cannot be enclosed or otherwise guarded for
practical reasons.
High-Pressure Fluids
High-pressure fluids, unless they are safely contained,
are extremely hazardous. Always relieve fluid pressure
before adjusting or servicing high pressure equipment. A
jet of high-pressure fluid can cut like a knife and cause
serious bodily injury, amputation, or death. Fluids
penetrating the skin can also cause toxic poisoning.
If you suffer a fluid injection injury, seek medical care
immediately. If possible, provide a copy of the SDS for
the injected fluid to the health care provider.
The National Spray Equipment Manufacturers
Association has created a wallet card that you should
carry when you are operating high-pressure spray
equipment. These cards are supplied with your
equipment. The following is the text of this card:
WARNING: Any injury caused by high pressure
liquid can be serious. If you are injured or even
suspect an injury:
SGo to an emergency room immediately.
STell the doctor that you suspect an injection injury.
SShow them this card
STell them what kind of material you were spraying

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MEDICAL ALERT—AIRLESS SPRAY WOUNDS: NOTE
TO PHYSICIAN
Injection in the skin is a serious traumatic injury. It is
important to treat the injury surgically as soon as
possible. Do not delay treatment to research toxicity.
Toxicity is a concern with some exotic coatings injected
directly into the bloodstream.
Consultation with a plastic surgeon or a reconstructive
hand surgeon may be advisable.
The seriousness of the wound depends on where the
injury is on the body, whether the substance hit
something on its way in and deflected causing more
damage, and many other variables including skin
microflora residing in the paint or gun which are blasted
into the wound. If the injected paint contains acrylic latex
and titanium dioxide that damage the tissue’s resistance
to infection, bacterial growth will flourish. The treatment
that doctors recommend for an injection injury to the
hand includes immediate decompression of the closed
vascular compartments of the hand to release the
underlying tissue distended by the injected paint,
judicious wound debridement, and immediate antibiotic
treatment.
Fire Safety
To avoid a fire or explosion, follow these instructions.
SGround all conductive equipment. Use only
grounded air and fluid hoses. Check equipment and
workpiece grounding devices regularly. Resistance
to ground must not exceed one megohm.
SShut down all equipment immediately if you notice
static sparking or arcing. Do not restart the
equipment until the cause has been identified and
corrected.
SDo not smoke, weld, grind, or use open flames
where flammable materials are being used or stored.
SDo not heat materials to temperatures above those
recommended by the manufacturer. Make sure heat
monitoring and limiting devices are working properly.
SProvide adequate ventilation to prevent dangerous
concentrations of volatile particles or vapors. Refer
to local codes or your material SDS for guidance.
SDo not disconnect live electrical circuits when
working with flammable materials. Shut off power at
a disconnect switch first to prevent sparking.
SKnow where emergency stop buttons, shutoff valves,
and fire extinguishers are located. If a fire starts in a
spray booth, immediately shut off the spray system
and exhaust fans.
SShut off electrostatic power and ground the charging
system before adjusting, cleaning, or repairing
electrostatic equipment.
SClean, maintain, test, and repair equipment
according to the instructions in your equipment
documentation.
SUse only replacement parts that are designed for use
with original equipment. Contact your Nordson
representative for parts information and advice.
Halogenated Hydrocarbon
Solvent Hazards
Do not use halogenated hydrocarbon solvents in a
pressurized system that contains aluminum components.
Under pressure, these solvents can react with aluminum
and explode, causing injury, death, or property damage.
Halogenated hydrocarbon solvents contain one or more
of the following elements:
Element Symbol Prefix
Fluorine F “Fluoro-”
Chlorine Cl “Chloro-”
Bromine Br “Bromo-”
Iodine I “Iodo-”
Check your material SDS or contact your material
supplier for more information. If you must use
halogenated hydrocarbon solvents, contact your Nordson
representative for information about compatible Nordson
components.
Action in the Event of a
Malfunction
If a system or any equipment in a system malfunctions,
shut off the system immediately and perform the
following steps:
SDisconnect and lock out system electrical power.
Close hydraulic and pneumatic shutoff valves and
relieve pressures.
SIdentify the reason for the malfunction and correct it
before restarting the system.
Disposal
Dispose of equipment and materials used in operation
and servicing according to local codes.

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Description
See Figure 1 and refer to Table 1 for a description of the
pump components.
NOTE: Installation and operation are dependent upon
the bulk unloader and application. Refer to your system
documentation for detailed information.
5
1
4
3
2
67
TEMPERATURE CONDITIONED
HYDRAULIC SECTION
Figure 1 Typical Rhino SD2/XD2 Pump
Table 1 Rhino Pump Components
Item Description
110-Inch Air Motor: Drives the hydraulic section.
2Hydraulic Section: The hydraulic section pressurizes the material and forces it out of the pump. The
following hydraulic section are available:
SStandard 5.8- and 8.1- cubic inch
S5.8- and 8.1- cubic inch temperature conditioned
SStainless Steel 8.1-cubic inch
3Shovel: Forces material into the hydraulic section.
4Solvent Chamber: Contains fluid to lubricate the plunger and packing gland seals; prevents material from
hardening on the plunger rod
5Coupling: Connects the air motor coupling shaft to the hydraulic section plunger rod.
6Main Air Control Valve: Controls the air motor shaft movement by shifting a spool. The spool exhausts air
on one side of the piston and directs air pressure to the opposite side of the piston.
7Pilot and Intermediate Valves: Controls the direction of the air motor shaft. Has manual overrides to
manually override the upward and downward stroke of the pump.

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Theory of Operation
The following paragraphs provide theory of operation for
a typical pump air motor and hydraulic section.
Air Motor
See Figure 2. The air motor drives the hydraulic section.
A five-way two-position main air control valve controls
the direction of the air motor shaft movement.
When the air motor piston moves up and down, the
piston trip-bar trips the pilot valves. The pilot valves
send momentary signals to an intermediate valve. The
intermediate valve sends a positive continuous signal to
the main air motor control valve for each direction of
travel. The intermediate valve has manual overrides for
air motor directional changes for performing repairs and
assembling.
Hydraulic Section
See Figure 3. The hydraulic section has a shovel
attached to the end of the hydraulic plunger that projects
into the center of the follower plate. The shovel moves
up and down with the plunger, helping to force material
into the hydraulic section. The hydraulic section
pressurizes the material and forces it out of the pump.
When the plunger strokes downward, the piston/upper
check opens and the lower check closes. Material
between the upper and lower checks is forced upward
through the piston. The material above the upper check
pressurizes and flows out of the material output port.
NOTE: The stainless steel version is a single-acting
hydraulic section that only displaces material on the
downward stroke.
During the upward pump stroke, the plunger and shovel
are pulled upward and the piston/upper check closes.
The lower check opens and allows material to pass into
the lower pump chamber below the upper check. As the
plunger and piston move upward, material from the upper
pump chamber is forced out of the material outlet port.
The solvent chamber surrounds the plunger. The
chamber contains solvent chamber fluid that lubricates
the plunger and packing gland seals. This fluid keeps
material from hardening on the plunger and minimizes
wear on the packing gland seals. The bleed valve is
used to bleed air from the pump.
DOWN STROKE
PILOT VALVE
MAIN AIR MOTOR
CONTROL VALVE
AIR MOTOR
PISTON TRIP-BAR
UP STROKE
PILOT VALVE UP
STROKE
INTERMEDIATE
VALVE
MANUAL
OVERRIDE
DOWN
STROKE
Figure 2 Air Motor

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PLUNGER
SOLVENT CHAMBER
PACKING GLAND
BLEED VALVE
PISTON/UPPER CHECK
LOWER CHECK
FOLLOWER PLATE
SHOVEL
UP
DOWN
STROKE
STROKE
OUTPUT PORT
OUTPUT PORT
Figure 3 Standard and Temperature Conditioned Hydraulic Sections

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PLUNGER
SOLVENT CHAMBER
PACKING GLAND
BLEED VALVE
LOWER CHECK
FOLLOWER PLATE
SHOVEL
UP
DOWN
STROKE
STROKE
OUTPUT PORT
MATERIAL DOES
NOT FLOW DURING
THE UPSTROKE.
OUTPUT PORT
MATERIAL FLOW
S
DURING THE
DOWN STROKE.
Figure 4 Stainless Steel Single-Acting Hydraulic Section

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Repair
This section only covers the procedures necessary to
perform shop repairs. Refer to the Rhino SD2/XD2
Frames manual for procedures on removing the pump
from the bulk unloader.
WARNING: Allow only qualified personnel to
perform the following tasks. Follow the safety
instructions in this document and all other related
documentation. Review the following:
SRelieve all pressure to the pump before
performing repair procedures.
SRead and understand this entire section
before repairing this equipment. Some
repairs can be made without breaking down
the pump.
SIf necessary, contact a local Nordson
representative with questions about
these procedures.
Consumable Items
Keep the following on hand when repairing the pump.
Item Part Application
Never-Seez 900344 Apply to threads of
applicable parts.
Threadlock
Adhesive
900464
Pipe/Thread
Sealant
900481
TFE Grease 1031834
(1-gal.)
or
900349
(0.75 oz)
Lubricate air motor
components.
O-Ring
Lubricant
1612251 Lubricate hydraulic
section components.
Mobil SHC 634 156289 Lubricate stainless
steel hydraulic section
components.

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Break Down the Pump
See Figure 5 and perform the desired procedure.
Repairs to the Hydraulic Section
1. Remove the screws (6) securing the coupling
halves (7) to the floating coupling shaft (2) and
plunger rod (3).
2. Remove the nuts (4) securing the hydraulic
section (5) to the connecting rods (8).
3. Remove the hydraulic section from the
pump assembly.
4. TEMPERATURE CONDITIONED PUMPS: Remove the
cover (9) from the hydraulic section.
5. Refer to the Hydraulic Section procedures to perform
the desired repairs.
Repairs to the Air Motor
1. Remove the screws (6) securing the coupling
halves (7) to the floating coupling shaft (2) and
plunger rod (3).
2. Remove the nuts (4) securing the hydraulic
section (5) to the connecting rods (8).
CAUTION: The air motor is heavy. Have an
assistant help with removing the air motor from
the hydraulic section.
3. Remove the air motor (1) from the hydraulic
section (5). Remove the connecting rods (8) from
the air motor (1).
4. Refer to the Air Motor procedures to perform the
desired repairs.

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2
4
5
6
1
3
8
7
7
9
Figure 5 Typical Air Motor and Hydraulic Section

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Standard and Temperature
Conditioned Hydraulic Sections
The following paragraphs provide procedures for
repairing a standard or temperature conditioned hydraulic
section.
Disassemble the Hydraulic Section
1. See Figure 6. Remove the solvent chamber (1) and
the O-ring (2) from the packing gland (4). Discard
the O-ring.
NOTE: Packing glands have either 4 or 6 screws.
2. Perform the following:
a. Remove the screws (3) from the packing
gland (4). Insert two screws into the threaded
holes (20) as shown.
b. Alternate tightening the screws to remove the
packing gland (4) from the upper pump body (5).
3. Remove the shovel adapter (18) from the rod
assembly (10).
NOTE: Hydraulic sections have either 4 or 6 screws that
secure the cylinder assembly to the upper pump body.
4. Remove the screws (19) securing the cylinder
assembly and follower plate housing (17) to the upper
pump body (5). Remove the follower plate housing.
5. Remove the bottom housing (15), O-ring (16), lower
check plate (14), and spacer (13). Discard
the O-ring.
6. Remove the cylinder housing (12) from the upper
pump body (5). Remove and discard the O-rings (11)
from the cylinder housing.
TEMPERATURE CONDITIONED SECTIONS: It is not
necessary to remove the coil (25) unless it or the
cylinder housing needs to be replaced.
7. Using either an arbor press or hydraulic press, push
the plunger rod (6) out of the cylinder housing (12).
8. Remove the rod assembly from the plunger rod (6).
Remove and discard the piston assembly (9).
9. Clean the parts with a compatible solvent. Refer to
Table 4 in the Specifications section for wetted
component materials.
10. Inspect parts for nicks, scratches, wear, and damage.
Replace parts if necessary.
11. Rebuild the packing gland (4) if necessary. Refer to
the Rebuild the Packing Gland procedure in this
section for procedures.
Assemble the Hydraulic Section
1. See Figure 6. Apply O-ring lubricant (23) to the
packing gland O-ring (2) and the packing
gland I.D. (21).
2. Install the packing gland (4) into the upper pump
body (5).
3. Apply Never Seez (22) to the threads of the
screws (3). Install the screws into the packing
gland (4) and tighten to 102−108 N•m (75−80 ft-lb).
4. TEMPERATURE CONDITIONED SECTIONS: Install the coil
(25) onto the cylinder housing (12) if necessary.
5. Apply O-ring lubricant (23) to the O-rings (11) and I.D.
of the cylinder housing (12). Install the O-rings onto
the cylinder housing. Install the cylinder housing onto
the upper pump body (5).
6. Assemble the plunger rod assembly:
a. Install the piston assembly (9) onto the rod
assembly (10).
b. Apply Never Seez (22) to the upper threads and
pilot of the rod assembly. Connect the rod
assembly to the plunger rod (6) and tighten to
272−298 N•m (200−220 ft-lb).
c. Apply a thin coat of O-ring lubricant (23) to
the plunger rod, piston assembly, and the
rod assembly.
7. Using either an arbor press or hydraulic press, install
the plunger rod assembly through the cylinder
housing (12) and packing gland (4).
8. Install the spacer (13) and lower check plate (14)
onto the rod assembly.
9. Install the bottom housing (15) onto the cylinder
housing (12). Apply O-ring lubricant (23) to the
O-ring (16) and install it onto the bottom housing.
10. Install the follower plate housing (17) onto the bottom
housing (15).
NOTE: Hydraulic sections have either 4 or 6 screws that
secure the cylinder assembly to the upper pump body.
11. Apply Never Seez (22) to the threads of the
screws (19). Perform the following:
a. Install the screws through the follower plate
housing (17) and into the upper pump body (5).
b. Hand-tighten two opposing screws at the same
time until the follower plate housing, bottom
housing, and cylinder housing (12) are secured
to the upper pump body (5). Hand-tighten the
remaining screws as shown.
c. After performing step 10b, simultaneously tighten
each screw 1/8 turn at a time in the sequence
shown to 102−108 N•m (75−80 ft-lb).
12. Apply threadlock adhesive (24) to the lower threads
of the rod assembly. Install the shovel adapter (18)
to the rod assembly and tighten to
75−81 N•m (55−60 ft-lb).
13. Install the solvent chamber cup (1) onto the
packing gland (4).

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1
2
3
4
5
6
9
10
12
11
13
14
15
16
17
18 19
11
PARTS ARE INCLUDED IN THESE KITS:
5.8 CUBIC INCH PACKING GLAND SERVICE KIT 1104726
8.1 CUBIC INCH PACKING GLAND SERVICE KIT 1104731
PARTS ARE INCLUDED IN THESE KITS:
SD2 5.8 CUBIC INCH DRIVE TRAIN SERVICE KIT 1105066
XD2 5.8 CUBIC INCH DRIVE TRAIN SERVICE KIT 1105065
SD2 8.1 CUBIC INCH DRIVE TRAIN SERVICE KIT 1105067
XD2 8.1 CUBIC INCH DRIVE TRAIN SERVICE KIT 1105068
20
A
22
22 23
23
23
23
23
23
22
24
23
23
A
PARTS ARE INCLUDED IN THESE KITS:
5.8 CUBIC INCH PACKING GLAND INTERNAL PARTS SERVICE KIT 1081134
8.1 CUBIC INCH PACKING GLAND INTERNAL PARTS SERVICE KIT 1081135
21
23
SEQUENCES
2
3
4
1
TORQUE
2
34
1
5
6
12
23
25
INLET
OUTLET
PORT
PORT
Figure 6 Standard Hydraulic Section Repairs

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Rebuild the Packing Gland
NOTE: This procedure requires the use of either a
hydraulic or an arbor press to remove the internal parts
of the packing gland.
1. See Figure 7. Place the packing gland housing (2)
on a fixture (5) with the solvent cup end facing up.
NOTE: During removal of the internal parts, the retainer
groove will break the O-ring (4).
2. Insert the removal arbor (1) into the packing
gland housing. Using the press, push out
the internal parts (3).
3. Thoroughly clean the packing gland housing in a
compatible solvent to remove all sealant material and
O-ring debris.
4. Coat the bore (8) of the packing gland housing with
O-ring lubricant (9).
5. Insert the scraper or retaining ring (7), sharp edge
down, into the the packing gland (2).
6. Using the insertion tool (6) and press, insert the new
internal parts into the packing gland housing (2).
Make sure that the brass seal retainer or backup
washer (10) is flush or slightly below the packing
gland housing as shown.

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SCRAPER RING
SHARP EDGE DOWN
3
1
2
4
8
6
PACKING GLAND HOUSING
5
BRASS SEAL RETAINER OR
BACKUP WASHER SHOWN SLIGHTLY
BELOW PACKING GLAND HOUSING
7
9
10
Figure 7 Typical Packing Gland Internal Parts Replacement

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Stainless Steel Hydraulic Section
The following paragraphs provide procedures for
repairing the stainless steel hydraulic section.
Disassemble the Hydraulic Section
1. See Figure 8. Remove the solvent chamber (1) and
the O-ring (2) from the packing gland (5). Discard
the O-ring.
2. Remove the packing gland assembly:
a. Remove the screws (3) from the collar (4). Insert
two screws into the threaded holes (9) as shown.
b. Alternate tightening the screws to remove the
packing gland assembly from the upper
pump body (8).
c. Loosen the set screws (6) and remove the
packing gland (5) from the collar (4).
d. Remove the fittings (7) from the packing gland.
3. Remove the shovel adapter (20) from the shovel
rod (12).
4. Remove the screws (21) securing the cylinder
assembly and follower plate housing (19) to the upper
pump body (8). Remove the follower plate housing.
5. Remove the bottom housing (17), O-ring (18), lower
check plate (16), and spacer (15). Discard
the O-ring.
6. Remove the cylinder housing (13) from the upper
pump body (8). Remove and discard the O-rings (14)
from the cylinder housing.
7. Remove the shovel rod (12) from the plunger
rod (11).
8. Clean the parts with a compatible solvent. Refer to
Table 4 in the Specifications section for wetted
component materials.
9. Inspect parts for nicks, scratches, wear, and damage.
Replace parts if necessary.
Assemble the Hydraulic Section
1. See Figure 8. Apply threadlock adhesive (10) to the
threads of the fittings (7). Install the fittings into the
packing gland (5) and tighten securely.
2. Apply Mobil SHC 634 lubricant (22) to the packing
gland O-ring (2) and the I.D. of the packing gland (5).
3. Install the upper collar (4) onto the packing gland (5).
Tighten the set screws (6) until they make contact with
the packing gland. Do not over tighten the set screws.
4. Install the packing gland assembly onto the body (8).
5. Apply Never Seeze (23) to the threads of the
screws (3). Install the screws into the packing gland
assembly and tighten to 102−108 N•m (75−80 ft-lb).
6. Apply Mobil SHC 634 lubricant (22) to the cylinder
housing O-rings (14). Install the O-rings onto the
cylinder housing (13). Install the cylinder housing
onto the upper pump body (8).
7. Assemble the plunger rod assembly:
a. Apply Never Seez (23) to the upper threads and
pilot of the shovel rod (12).
b. Connect the shovel rod to the plunger rod (11)
and tighten to 272−298 N•m (200−220 ft-lb).
c. Apply a thin coat of Mobil SHC 634 lubricant (22)
to the plunger rod (11) and the shovel rod (12).
8. Using either an arbor press or hydraulic press, install
the plunger rod assembly into the cylinder housing
(13) and packing gland (5).
9. Install the spacer (15) and lower check plate (16)
onto the rod assembly.
10. Install the bottom housing (17) onto the cylinder
housing (13). Apply Mobil SHC 634 lubricant (22) to
the O-ring (18) and install it onto the bottom housing.
11. Install the follower plate housing (19) onto the bottom
housing (17).
12. Apply Never Seez (23) to the threads of the
screws (21). Perform the following:
a. Install the screws through the follower plate
housing (19) and into the upper pump body (8).
b. Hand-tighten two opposing screws at the same
time until the follower plate housing, bottom
housing (17), and cylinder housing (13) are
secured to the upper pump body (8).
Hand-tighten the remaining screws as shown.
c. After performing step 12b, simultaneously tighten
each screw 1/8 turn at a time in the sequence
shown to 102−108 N•m (75−80 ft-lb).
13. Apply Never Seez (23) to the lower threads of the rod
assembly. Install the shovel adapter (20) to the rod
assembly and tighten to 75−81 N•m (55−60 ft-lb).
14. Install the solvent chamber cup (1) onto the
packing gland assembly.

Rhino SD2/XD2 Pumps 15
Part 1073520-15
E2018 Nordson Corporation
1
2
3
4
8
11
12
23
13
14
15
16
17
18
19
20
21
22
22
22
5
7
6
22
22
23
23
14
22
PARTS ARE INCLUDED IN THIS KIT:
XD2 8.1 CUBIC INCH STAINLESS STEEL PACKING GLAND SERVICE KIT 1074331
PARTS ARE INCLUDED IN THIS KIT:
XD2 8.1 CUBIC INCH ARW STAINLESS STEEL DRIVE TRAIN SERVICE KIT 1074332
SEQUENCE
2
3
4
1
TORQUE
5
6
10
23
9
9
23
Figure 8 Stainless Steel Hydraulic Section Repairs

Rhino SD2/XD2 Pumps
16
E2018 Nordson Corporation
Part 1073520-15
Air Motor
The following paragraphs provide repair procedures for
the air motor section.
Replace the Trip-Rod U-Cup
The trip-rod U-cup can be replaced without removing the
air motor from the pump.
Remove the Trip-Rod U-Cup
1. See Figure 9. Remove the screws (2) securing the
cover (1) to the trip-rod assembly (6).
2. Remove the screws (5) and washers (4)
securing the trip-lever mounting pad (15) to
the trip-rod assembly (6).
3. Swing the trip-lever mounting pad (15) away from the
seal retainer plate (11).
4. Place a wrench on the flats of the piston rod (13).
Remove the nut (7) securing the trip-bar (8) to the
piston rod.
5. Remove the screws (9) and washers (10) securing
the seal retainer plate (11) to the trip-rod
retainer (12).
! CAUTION !
Use a small screwdriver or an O-ring pick in
the next step to prevent damage to the U-cup
bore and piston rod.
6. Remove the U-cup (14) from the trip-rod
retainer (12). Discard the U-cup.
Install the Trip-Rod U-Cup
1. See Figure 9. Lubricate the new U-cup (14) with
TFE grease (16). Insert the U-cup into the trip-rod
retainer (12) as shown.
2. Install the seal retainer plate (11) onto the trip-rod
retainer (12) using the screws (9) and washers (10).
Tighten the screws to 22−25 ft-lb (30−33 N•m).
3. Place a wrench on the flats of the piston rod (13).
Install the trip-bar (8) to the piston rod using the
nut (7). Tighten the nut securely.
4. Perform the following:
a. Make sure that the mounting pad pins (3)
protrude through the trip-rod assembly (6)
as shown.
b. Secure the trip-lever mounting pad (15) to
the trip-rod assembly using the screws (5)
and washers (4). Tighten the screws
to 22−25 ft-lb (30−33 N•m).
5. Install the cover (1) to the trip-rod assembly using the
screws (2). Tighten the screws securely.