Gage Bilt GB745 Посібник - Сторінка 8

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TROUBLESHOOTING

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

1. MORE THAN ONE PULL IS REQUIRED TO BREAK RIVET.

Tool needs to be bled. (See filling and bleeding instructions.)

Spring has fatigued, replace.

Jaws are stripped or packed with chips. Clean or replace.

Incorrect nose tip.

2. SLOW OR PARTIAL OPERATION WHEN THE AIR ACTUATOR ASS'Y IS DEPRESSED

O'Ring (403815) and Back-Up Rings (401119) could be worn or damaged. Replace.

Back-Up Rings (S908) and O'Ring (A-201) could be worn or damaged. Replace.

Muffler (744143) or filter inside Valve Spool Ass'y (743142) may be plugged with dirt. Clean thoroughly and back-blow

with compressed air.

Hole in metering screw in valve spool ass'y (743142) may be blocked or damaged. Hole diameter should be .028". Clear

and size or replace.

3. NO OPERATION WHEN AIR ACTUATOR ASS'Y IS DEPRESSED

Tool seized due to mechanical failure or damaged parts.

4. OIL LEAKAGE

DO NOT

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

b) Any oil leaking externally should be traced to its source. An o'ring or seal that leaks should be replaced.

5. AIR BYPASS FROM VALVE HOUSING

If the spring (744144) breaks or dislodges, air will flow freely through the muffler (744143). Replace or reset. Valve spring

installation tool (744251) is recommended.

Check o'rings on valve sleeve (743144), valve spool ass'y (743142), and valve plug (744142). If worn or damaged, replace.

Valve sleeve removal tool (744152) is recommended.

6. FASTENER STEM JAMMED IN NOSE ASSEMBLY

Nose assembly components require service.

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

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

Incorrect follower.

OVERHAUL

The disassembly and re-assembly procedure can be accomplished by utilizing the following instructions and drawings. Use extreme

care during disassembly and re-assembly not to mar or nick any smooth surface that comes in contact with seals. Before installing

seals, always apply a good lubricant, such as Lubriplate®, to the surfaces. It is recommended that tool kit (GB745TK) be used to

facilitate overhaul. A complete overhaul can be achieved by the use of Service Kit (745017) which contains a complete set of o'rings,

back-up rings, screws, washers and gasket.

756610

STEM CATCHER BAG

PISTON ROD WRENCH

WARNING:

DEPRESS AIR ACTUATOR ASS'Y AND DISCONNECT FROM AIR WITH PISTON IN THE REAR POSITION

BEFORE OVERHAUL. SEVERE PERSONAL INJURY MAY OCCUR IF AIR HOSE IS NOT DISCONNECTED.

WHEN FORCING PISTON ROD ASSEMBLY DOWNWARD WITH HEAD CYLINDER ASSEMBLY REMOVED, HYDRAULIC FLUID

WILL EJECT FORCIBLY FROM HANDLE.

704151

POWER CYLINDER TOOL

745155

PACKING PLUG WRENCH

(756610 CATCHER BAG SHOWN ABOVE IS SOLD SEPARATELY)

GB745TK Service Tool Kit

Part No.

Description

745155

Piston Rod Wrench

704150

Packing Plug Wrench

704151

Power Cylinder Tool

704152

Seal Guide

704153

Air Bleeder Assembly

S1178

Valve Extractor

744251

Valve Spring Installation Tool

744152

Valve Sleeve Removal Tool

DISCONNECT AIR FROM

TOOL, remove the nose from the tool and

704152

SEAL GUIDE

704150

745253

BLEEDER BOTTLE

VALVE SLEEVE

INSTALLATION TOOL

744152

VALVE SLEEVE

REMOVEAL TOOL

USE CAUTION

S-1178

VALVE EXTRACTOR

Rev. 1/14