Gardner Denver FXD – 10” Operating And Service Manual - page 11

3–600    Page 5

system and discharge system to prevent any flam-

mable, hot, cold or corrosive fluid leakage from dripping

or spraying on any components, flame, sparks, hot ob-

jects or people.  Inspect the plungers, packing, gaskets

and seals for fluid leakage frequently and replace all

worn or leaking parts.

Selection of the proper gaskets, seals and stuffing box

packing is even more critical when flammable, hot, cold

or corrosive fluids are being pumped than when other,

inherently less dangerous fluids are used.  Contact a

Gardner Denver Machinery service representative for

assistance in selecting the proper gaskets, seals and

packing before beginning operation.

Since some packing weepage into the cradle area is in-

evitable, the drain at the bottom of the cradle must be

connected to a drain line which conducts the fluid leak-

age to a collection container located in a protected

area.  The entire drain system and container must be

constructed of materials resistant to attack from the

pumped fluid or from explosion or fire of the pumped

fluid.  Heavy duty cradle covers must be securely

fastened in the proper position on the pump at all

times when the pump is operating.  If the pumped

fluid releases harmful, explosive or flammable va-

pors the covers must be vented to conduct the

fumes away from the pump unit to a nonhazardous

area.

Before beginning pumping operations or starting the

pump power source (whether an engine or electric mo-

tor) check the atmosphere all around the pumping site

for the presence of flammable or explosive vapors.  Do

not begin operation and stop ongoing operation if flam-

mable or explosive vapors are detected.  Hot surfaces,

sparks, electric current or engine exhaust could ignite

flammable or explosive vapors.  Each engine used as

a power source on pumping units where flammable or

explosive vapors could form should be equipped with

an air inlet shut–off.  If flammable or explosive vapors

are present in the pumping site atmosphere, an engine

could continue to run on these vapors even after the en-

gine fuel line is shut–off if an air inlet shut–off is not

used.

In addition, on pumping units used where flammable or

explosive vapors could form, all electric motors used as

power sources must be of explosion proof construction

and all electrical components and wiring must meet the

current National Electrical Code for explosive atmosp-

heres.

These precautions must be taken to avoid possible per-

sonal injury, death and/or equipment damage from ex-

plosion, fire or burns.

HIGH PRESSURE LIQUID JETTING, BLASTING

AND CLEANING

Extreme caution must be exercised if

any type of wand, gun, nozzle or any

other pressure and flow directing de-

vice is attached to the pump dis-

charge system for use in jetting,

blasting, cleaning, etc.  This type of

equipment must be used with utmost

care by trained, experienced opera-

tors. High pressure fluid streams can

either by direct contact or by propel-

ling loose objects, cause serious per-

sonal injury or death to the operators

and/or other persons.

Pressure or flow directing devices often receive pres-

surized flow through flexible hoses, which can burst if

they are kinked, cut, abraded or are otherwise worn,

damaged or pressured above their rated capacity.  Pro-

tect the hose and connections from damage by people,

objects and vehicles.  A broken, cut or otherwise burst

hose can release pressurized fluid which may cause

personal injury, death and/or equipment damage.

High pressure fluid from hand held or hand directed

pressure and flow directing devices may overpower an

operator’s ability to control or direct the device, which

could lead to personal injury, death and/or equipment

damage.  The operator must brace against the back-

ward thrust of a hand held device.  In addition, a safety

harness or safety net must be used when working in an

area where the operator could be injured in a fall.  Stand

to the side of any tubing or container being sprayed to

avoid back spray and never operate a hand held device

above shoulder level.

Never direct the pressurized fluid stream at yourself or

any other person, control valves, the pump, pump

drive, suction or discharge systems.  The pressurized

stream can cause serious personal injury or death and

can also change valve or control settings which could

dangerously increase the delivery pressure to the pres-

sure and flow directing device.

 When operating a pressure and flow directing device,

use only equipment which automatically shuts off flow

when an operator releases hand or foot pressure on the

pressurized flow trigger control to prevent injury if the

operator is overpowered or becomes disabled.

Check to insure this automatic shut–off equipment is

operating properly before every use and never circum-