Gast ROA Series Operation & Maintenance Manual Download Page 2

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Correct installation is your responsibility.
Make sure you have the proper installation conditions
and that installation clearances do not block air flow.

Blocking air flow over the product in any way can
cause the product to overheat.

Mounting

This product can be installed in any orientation.
Mounting the product to a stable, rigid operating
surface and using shock mounts will reduce noise and
vibration.

Plumbing

Remove plugs from the IN and OUT ports. Connect
with pipe and fittings that are the same size or larger
than the product's threaded ports. Be sure to connect
the intake and exhaust plumbing to the correct inlet
and outlet ports. Ports will not support plumbing.

Accessories

The product's external intake and exhaust muffler will
provide adequate filtration in most applications. Check
filters periodically and replace when necessary.
Consult your Gast Distributor/Representative for
additional filter recommendations.

Install relief valves and gauges at inlet or outlet or
both, to monitor performance. Check valves may be
required to prevent back streaming through the pump.

Motor Control
It is your responsibility to contact a qualified
electrician and assure that the electrical installa-
tion is adequate and in conformance with all
national and local codes and ordinances. The
metal capacitor must be grounded.

Determine the correct overload setting required to
protect the motor (see motor starter manufacturer's
recommendations). Select fuses, motor protective
switches or thermal protective switches to provide
protection. Fuses act as short circuit protection for the
motor, not as protection against overload. Incoming
line fuses must be able to withstand the motor's
starting current. Motor starters with thermal magnetic
overload or circuit breakers protect motor from over-
load or reduced voltage conditions.

The wiring diagram supplied with the product provides
required electrical information. Check that power
source is correct to properly operate the dual-voltage
motors.

Electrical Connection

c

Disconnect electrical power at the circuit breaker
or fuse box before installing this product.

Install this product where it will not come into
contact with water or other liquids.

Install this product where it will be weather
protected.

Electrically ground this product.

Failure to follow these instructions can result in
death, fire or electrical shock.

WARNING

Electrical Shock Hazard

c

This product must be properly grounded.

Do not modify the plug provided. If it will not
fit the outlet, have the proper outlet installed
by a qualified electrician.

If repair or replacement of the cord or plug is
necessary, do not connect the grounding wire
to either flat blade terminal. The wire with
insulation that is green or green with yellow
stripes is the grounding wire.

Check the condition of the power supply wiring.
Do not permanently connect this product to
wiring that is not in good condition or is 
inadequate for the requirements of this product.

Failure to follow these instructions can result in
death, fire or electrical shock.

WARNING

Electrical Shock Hazard

WARNING

DANGER

Your safety and the safety of others

is extremely important.

We have provided many important safety messages
in this manual and on your product. Always read
and obey all safety messages.

This is the safety alert symbol. This symbol

alerts you to hazards that can kill or hurt you and
others. The safety alert symbol and the words
“DANGER” and “WARNING” will precede all safety
messages. These words mean:

You will be killed or seriously injured if you don’t
follow instructions.

You can be killed or seriously injured if you don’t
follow instructions.

All safety messages will identify the hazard, tell you
how to reduce the chance of injury, and tell you
what can happen if the safety instructions are not
followed.

INSTALLATION

Summary of Contents for ROA Series

Page 1: ...rosive gases and particulate material will damage unit Water vapor oil based contaminants or other liquids must be filtered out Consult your Gast Distributor Representative before using at high altitudes This pump is oil less and requires NO lubrication ROA RAA ROCKING PISTON OIL LESS PUMPS Operation Maintenance Manual WARNING PLEASE READ THIS MANUAL COMPLETELY BEFORE USING THIS PRODUCT SAVE THIS ...

Page 2: ...ced voltage conditions The wiring diagram supplied with the product provides required electrical information Check that power source is correct to properly operate the dual voltage motors Electrical Connection c Disconnect electrical power at the circuit breaker or fuse box before installing this product Install this product where it will not come into contact with water or other liquids Install t...

Page 3: ... cord is in good condition Check that the gage wire of the extension cord is the correct size wire to carry the current this product will draw An undersized cord is a potential fire hazard and will cause a drop in line voltage resulting in loss of power causing the product to overheat The following table indicates the correct size cord for length required and the ampere rating listed on the produc...

Page 4: ...ting periods 1 Disconnect plumbing 2 Operate product for at least 5 minutes without plumbing 3 Run at maximum vacuum for 10 to 15 minutes 4 Repeat step 2 5 Disconnect power supply 6 Plug open ports to prevent dirt or other contaminants from entering product SERVICE KIT INSTALLATION Gast will NOT guarantee field rebuilt product performance For performance guarantee the product must be returned to a...

Page 5: ... THE PURCHASE PRICE IN LIEU OF REPAIR OR REPLACEMENT GAST WILL NOT BE RESPONSIBLE OR LIABLE FOR INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND however arising including but not limited to those for use of any products loss of time inconvenience lost profit labor charges or other incidental or consequential damages with respect to persons business or property whether as a result of breach of warrant...

Page 6: ... Ring Cylinder 1 AH179 AH179 AH179 AH179 AH179 8 Cylinder 1 AJ342 AJ342 AJ342 AJ342 AJ342 9 Shims As AJ345 AJ345 AJ345 AJ345 AJ345 Req 10 Cup 1 AH175 AH175 AH175 AH175 AH175 11 Retainer Plate 1 AT715A AT715A AT715B AT715B AT715A 12 Connecting Rod 1 AT846 AT846A AT846N AT846G AT846G Assy 13 Fan 1 AF533 AF533 AF533 AF533 AF533 14 Grille 1 AH185 AH185 AH185 AH185 AH185 15 Screw 2 AT283 AT283 AT283 AT...

Page 7: ... AH817 7 O Ring Cylinder 2 AH179 AH179 AH179 8 Cylinder 2 AJ342 AJ342 AJ342 9 Shims As AJ345 AJ345 AJ345 Req 10 Cup 2 AH175 AH175 AH175 11 Retainer Plate 2 AT715B AT715B AT715A 12 Connecting Rod 2 AT846H AT846J AT846L Assy 13 Fan 1 AF533 AF533 AF533 13A Fan 1 AF533A AF533A AF533A 14 Grille 2 AH185 AH185 AH185 15 Screw 4 AT283 AT283 AT283 Service Kit 1 K756 K757 K756 K756 K757 Denotes parts include...

Page 8: ... listing contact one of our sales offices below European Sales Service Headquarters Beech House Knaves Beech Business Centre Loudwater High Wycombe Bucks England HP10 9SD Tel 44 1628 551500 Fax 44 1628 551590 www gastmfg com Gast Hong Kong Unit 12 21 F Block B New Trade Plaza 6 On Ping Street Shatin N T Hong Kong Ph 852 2690 1008 Fax 852 2690 1012 www gasthk com World Headquarters P O Box 97 2550 ...

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