Gage Bilt GB756 Manual - Page 8

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TROUBLE SHOOTING

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

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

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

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

c) Incorrect nose assembly.

2. SLOW OR PARTIAL OPERATION WHEN THE ACTUATOR IS DEPRESSED

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

b) Back-up Rings (401086) and O'Ring (403770) could be worn or damaged. Replace.

3. NO OPERATION WHEN ACTUATOR IS DEPRESSED

a) 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 THROTTLE VALVE HOUSING

a) If the spring (50607) breaks, air will flow freely through the muffler (756145). Replace.

b) Check o'rings on throttle valve (756140). If worn or damaged, replace.

6. FASTENER STEM JAMMED IN NOSE ASSEMBLY

a) Nose assembly components require service. DISCONNECT AIR FROM TOOL, remove the nose from the tool

and 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:

DISCONNECT TOOL FROM ITS AIR SOURCE BEFORE PERFORMING 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.

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 recom-

mended that tool kit (GB756TK) be used to facilitate overhaul. A complete overhaul can be achieved by the use of Ser-

vice Kit 756004 which contains a complete set of o'rings, back-up rings, screws, washers and gasket.

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.

WARNING

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

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

USE CAUTION

WHEN FORCING PISTON ROD ASSEMBLY DOWNWARD WITH HEAD CYLINDER ASSEMBLY

REMOVED, HYDRAULIC FLUID WILL EJECT FORCIBLY FROM HANDLE.

S/N: 1226 AND ABOVE

PLEASE CONTACT GAGE BILT FOR ALL OTHER SERIAL NUMBERS.

(756610 CATCHER BAG SOLD SEPARATELY)

GB756TK Service Tool Kit Includes:

Part No.

Description

A-139

Tee Wrench

756151

Packing Plug Wrench

A-1201

Socket Head Cap Screw

A-1307

DR 6PT Socket

REV. 3/14