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 INSTRUCTIONS–PARTS LIST

308–493

Rev. A

Second–Gun Hose Kit

100 psi (6.9 bar) Maximum Working Pressure

These kits include the required hoses and hardware for
installing a second gun on an existing one–gun spray
system. The spray gun must be purchased separately.

Part No. 237–428

Use this kit with an Optimiser HVLP package, Model
237–411 or 237–412, or a G700N package, Model
237–407 or 237–408.

Part No. 237–612

Use this kit with a PRO 3500 Electrostatic spray–sys-
tem, Model 237–415 or 237–416.

Required additional equipment

Part No. 236–015. Order this Optimiser HVLP gun for
use with the Hose Kit 237–428.

Part No. 217–780. Order this G700N air–spray gun
and air cap (106–706) for use with the Hose Kit
237–428.

Part No. 222–300. Order this PRO 3500 electrostatic
air–spray gun for use with the Hose Kit 237–612.

IMPORTANT

This manual provides the basic safety, installation, and
operation information for a generic spray–system. For
your safety, also read the component manuals sup-
plied with your system before operating the system.

GRACO INC.

P.O. BOX 1441

MINNEAPOLIS, MN

55440–1441

COPYRIGHT 1994, GRACO INC.

This manual contains important 
warnings and information. 
READ AND RETAIN FOR REFERENCE

Summary of Contents for 237–428

Page 1: ...equired additional equipment Part No 236 015 Order this Optimiser HVLP gun for use with the Hose Kit 237 428 Part No 217 780 Order this G700N air spray gun and air cap 106 706 for use with the Hose Ki...

Page 2: ...8 Graco Phone Numbers 8 Symbols Warning Symbol WARNING This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions Caution Symbol CAUTION This symbol al...

Page 3: ...serious injury D This equipment is for professional use only D Read all instruction manuals tags and labels before operating the equipment D Use the equipment only for its intended purpose If you are...

Page 4: ...A 1 2 9 4 3 I Install the hose kit NOTE A wall mounted system is shown in Fig 1 The instructions for installing the kit are the same for all systems 1 Relieve the pressure 2 Replace the plug B in the...

Page 5: ...luid outlets See Fig 3 NOTE The reference letters A and C are fluid hoses The reference letters B and D are air hoses NOTE All air hoses have 1 4 18 npsm f fittings All fluid hoses have 3 8 18 npsm fi...

Page 6: ...d hose are primed decrease the air pressure for the pump to 20 to 30 psi 1 4 to 2 1 bar 3 Repeat the priming procedure for the second gun and hose III Set the fluid and air pressure 1 Be sure the air...

Page 7: ...1 7 168 160 BUSHING 1 4 18 npt f x 3 8 18 npt m 2 8 237 528 BALL VALVE 1 4 18 npt mbe 2 9 188 077 NIPPLE 1 4 18 6 special thread x 1 4 18 npt 1 10 110 110 SEALANT 1 11 236 410 HOSE KIT Includes items...

Page 8: ...e equipment does not disclose any defect in fluid or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation DISCLAIMERS AND LIMIT...

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