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Providing all maintenance conditions have been met, follow this systematic approach to diagnosis.
1. NO OPERATION WHEN ELECTRIC ACTUATOR ASSEMBLY (206148) / ACTUATOR ASSEMBLY-AIR (704130) IS DEPRESSED.
a.) Check powerunit power source.
b.) Control cord may be loose or damaged.
c.) Faulty Actuator. Replace.
d.) Check hydraulic couplings; tighten, repair or replace.
2. SLOW OR PARTIAL OPERATION WHEN ELECTRIC ACTUATOR ASSEMBLY (206148) / ACTUATOR ASSEMBLY-AIR (704130) IS DEPRESSED.
a.) Low hydraulic pressure. Check powerunit, adjust.
b.) Back-up ring (401121) or o'ring (405875) on the piston assembly (510310) could be worn or damaged. Replace.
c.) Excessive wear or scoring on moving parts. Check and replace faulty parts.
3. TOOL OPERATES IN REVERSE.
a.) Tool stops in back position. Hydraulic hoses are reversed. Correct.
4. HYDRAULIC OIL OVERHEATS.
a.) Powerunit motor rotation reversed. Electrical connections reversed. See powerunit instruction manual.
b.) Restrictions in either hydraulic lines, hoses or couplings. Check and tighten, clean or replace.
5. OIL LEAKAGE.
a.) Hydraulic oil leaks from connections. Tighten threaded connections. Do not use Teflon® tape.
b.) Oil leaks from tool. Determine source of leak and replace worn or defective o'rings and back-up rings.
6. PINTAIL GROOVES STRIPPED DURING PULL STROKE.
a.) Nose Assembly must be pushed onto fastener fully.
b.) Chips may have collected in chuck jaws. Disassemble nose assembly, clean jaws in mineral spirits or use a sharp pointed
object to remove chips. Re-lube surfaces jaws ride on.
c.) Chuck jaws may be worn or damaged. Replace.
d.) Pintail too short for jaws to properly grip. Select proper grip length fastener.
e.) Excessive gap between sheets. Reduce gap before attempting to install fastener.
7.
NOSE ASSEMBLY WON'T ACCEPT FASTENER PINTAIL.
a.) Spent fastener stem may be jammed in pulling head. Disassemble and check for worn or broken parts in nose assembly.
Replace defective parts, clean and re-lube jaws before reassembling.
WARNING:
Disconnect the tool from power source when adding or removing relief valves.
1. Insert relief valve into piston with 4 flats facing rear of tool. (See image below). DO NOT insert into piston with 4 flats facing the opposite
way or damage to the tool or personal injury can occur.
GB510NAS/GB510ANAS INSTALLATION TOOL: S/N 1045 AND ABOVE
CONTACT GAGE BILT FOR ALL OTHER SERIAL NUMBERS
TROUBLESHOOTING
RELIEF VALVE - INSTALLATION
Position relief valve 4 flats
INCORRECT
towards REAR of tool.
Image may not reflect actual tool
11
Rev 9/23
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