Nordson_EFD_Rhino_SD2_XD2_Operating Manual - 第7页

Rhino SD2/XD2 Pumps 3 Part 1073520-12 E 2013 Nordson Corporation Description See Figure 1 and refer to T able 1 for a description of the pump components. NOTE: Installation and operation are dependent upon the bulk unloa…

Rhino SD2/XD2 Pumps

E 2013 Nordson Corporation

Part 1073520-12

WARNING: Any injury caused by high pressure

liquid can be serious. If you are injured or even

suspect an injury:

S Go to an emergency room immediately.

S Tell the doctor that you suspect an injection injury.

S Show him this card

S Tell him what kind of material you were spraying

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.

S Ground 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.

S Shut down all equipment immediately if you notice

static sparking or arcing. Do not restart the

equipment until the cause has been identified and

corrected.

S Do not smoke, weld, grind, or use open flames

where flammable materials are being used or stored.

S Do not heat materials to temperatures above those

recommended by the manufacturer. Make sure heat

monitoring and limiting devices are working properly.

S Provide adequate ventilation to prevent dangerous

concentrations of volatile particles or vapors. Refer

to local codes or your material MSDS for guidance.

S Do not disconnect live electrical circuits when

working with flammable materials. Shut off power at

a disconnect switch first to prevent sparking.

S Know 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.

S Shut off electrostatic power and ground the charging

system before adjusting, cleaning, or repairing

electrostatic equipment.

S Clean, maintain, test, and repair equipment

according to the instructions in your equipment

documentation.

S Use 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 MSDS 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:

S Disconnect and lock out system electrical power.

Close hydraulic and pneumatic shutoff valves and

relieve pressures.

S Identify 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.

Rhino SD2/XD2 Pumps

Part 1073520-12

E 2013 Nordson Corporation

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.

TEMPERATURE CONDITIONED

HYDRAULIC SECTION

Figure 1 Typical Rhino SD2/XD2 Pump

Table 1 Rhino Pump Components

Item Description

1 10-Inch Air Motor: Drives the hydraulic section.

2 Hydraulic Section: The hydraulic section pressurizes the material and forces it out of the pump. The

following hydraulic section are available:

S Standard 5.8- and 8.1- cubic inch

S 5.8- and 8.1- cubic inch temperature conditioned

S Stainless Steel 8.1-cubic inch

3 Shovel: Forces material into the hydraulic section.

4 Solvent Chamber: Contains fluid to lubricate the plunger and packing gland seals; prevents material from

hardening on the plunger rod

5 Coupling: Connects the air motor coupling shaft to the hydraulic section plunger rod.

6 Main 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.

7 Pilot 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.

Rhino SD2/XD2 Pumps

E 2013 Nordson Corporation

Part 1073520-12

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

STROKE

INTERMEDIATE

VALVE

MANUAL

OVERRIDE

DOWN

STROKE

Figure 2 Air Motor