Gage Bilt GB713SHA-16 Посібник - Сторінка 5

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TROUBLESHOOTING

Providing all maintenance conditions have been met, follow this systematic approach to diagnosis.

1. NO OPERATION WHEN ACTUATOR LEVER ASSEMBLY IS DEPRESSED

a.) Check powerunit power source.

b.) Faulty actuator assembly. Replace.

c.) Check hydraulic couplings; tighten, repair or replace.

2. SLOW OR PARTIAL OPERATION WHEN ACTUATOR LEVER ASSEMBLY DEPRESSED

a.) Low hydraulic pressure. Check fluid level.

b.)

Polyseal (A-1119) and o'ring (400793) could be worn or damaged. Replace.

c.) Excessive wear or scoring on moving parts. Check and replace faulty parts.

*See Overhaul

3. OIL LEAKAGE

DO NOT

OPERATE WITH OIL LEAKING FROM TOOL. HIGH PRESSURE OIL MAY CAUSE SEVERE PERSONAL INJURY.

b.) Hydraulic oil leaks from connections. Tighten threaded connections.

c.) Oil leaks from tool. Determine source of leak and replace worn or defective o'rings and back-up rings.

4. 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.

5. 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.

6. FASTENER STEM JAMMED IN NOSE ASSEMBLY

a) Nose assembly components require service.

disassemble. Replace worn or broken parts. Clean the surface the jaws ride on.

b) Stems lodged side by side in the follower. Disassemble, remove stems, and reassemble.

c) Incorrect follower.

OVERHAUL

WARNING:

DISPOSE OF HYDRAULIC FLUID IN ACCORDANCE WITH ALL ENVIRONMENTAL LAWS AND REGULATIONS

APPLICABLE TO YOUR AREA.

Service Kit 713138 contains a complete set of o'rings, back-up rings and screws to facilitate overhaul

Perform overhaul in a clean, well lit area using care not to scratch or nick any smooth surface that comes in contact

with an o'ring. Use of Lubriplate® (Gage Bilt part no. 402723) or other lubricant is recommended during reassembly to

prevent tearing or distorting of o'rings. Use extreme care during disassembly and re-assembly not to damage, mar or

nick any smooth surface that comes in contact with seals.

Disconnect hydraulic hose and air line from powerunit.

Remove complete nose assembly and extensions from tool. Remove socket head cap screws (400061) separating han-

dle (700324) from head cylinder ass'y (713123). Replace o'ring (S832) and gasket (704129). Remove end cap (713217).

Carefully push piston (713211) out of head cylinder ass'y (713123). Using a small blunt object, remove polyseal

(A-1119) and o'ring (400793) from piston (713211), remove o'rings (S834) and back-up ring (401089) from inside head

cylinder assembly (713123) and remove o'rings (400808) and (400824) from end cap.

Clean parts in mineral spirits or other o'ring compatible solvent being sure to clean o'ring grooves. Inspect compo-

nents for scoring, excessive wear or damage.

Reassembly sequence is opposite of disassembly. Be sure relative positions of polyseal, o'rings and back-up rings are

as shown in exploded view and parts list. Coat hose fitting threads with a non-hardening Loctite® 30534 or similar Tef-

lon® infused Pipe Dope is recommended.

properly applied, pieces of Teflon may enter the hydraulic system and cause malfunction or damage. Use 1 1/2 wraps

of tape on each thread. Cut off all loose tape ends. Tighten until fitting feels snug and then go 1/2 to a full turn past that

point.

CAUTION:

Over tightening can easily distort the threads.

DISCONNECT AIR FROM

CAUTION

Teflon tape is an excellent thread sealer, however, if it is not

TOOL, remove the nose from the tool and

7/11 REV 3/14