Gast 55R Series - Manual (Page 8)

Low High Pump Won’t Excess Reason and remedy
Vacuum Pressure Vacuum Pressure Overheat Start Noise for problem.
• • • • • Filter dirty. Clean or replace.
• • • • • Muffler dirty. Clean or replace.
• • Valves dirty or valves bent.
Clean or replace.
• • Worn cup.
Repair or replace.
• • • Relief valve set too high.
Inspect and adjust.
• • Relief valve set too low.
Inspect and adjust.
• • • • • • Plugged vacuum/pressure line.
Inspect and repair.
• • Collapsed vacuum line.
Inspect and repair.
• • Low voltage, won’t start.
Check power source.
• • • Voltage wrong.
Check power source.
• • • Worn cup/piston hitting cylinder.
Replace.
• • Cylinder misadjustment.
Realign.
• • • Leaky hose or check valve.
Replace.
• • • • • Dirt or liquid on top of piston.
Inspect and clean.
• • • • • Motor not wired correctly.
Check wiring diagram/line voltage.
• • • Blown head gasket.
Replace.
TROUBLESHOOTING CHART
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up-to-date listing, contact one of our sales offices below:
PART NO. 70 - 6600 G491PL (REV-F)
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P.O. Box 97
2550 Meadowbrook Rd.
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0097
Ph: 269/926-6171
FAX: 269/925-8288
www.gastmfg.com
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Service Headquarters
Beech House Knaves Beech
Business Centre
Loudwater, High Wycombe
Bucks, England HP10 9SD
Tel: +44 1628 551500
Fax: +44 1628 551590
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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
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