6
REV. 8/13
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 (GB740TK) be used to facilitate overhaul. A complete overhaul can be achieved by the use of
Service Kit 734004 which contains a complete set of o'rings, back-up rings, screws, washers and gasket.
WARNING:
DEPRESS TRIGGER AND DISCONNECT FROM AIR WITH HEAD PISTON 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.
704214
STEM CATCHER BAG
704149
PISTON ROD WRENCH
704151
POWER CYLINDER TOOL
704152
SEAL GUIDE
704150
PACKING PLUG WRENCH
704153
BLEEDER BOTTLE
744151
VALVE SPRING
INSTALLATION TOOL
744152
VALVE SLEEVE
REMOVAL TOOL
S1178
VALVE EXTRACTOR
(704214 CATCHER BAG SHOWN ABOVE IS SOLD SEPARATELY)
Part No.
Description
704149
Piston Rod Wrench
704150
Packing Plug Wrench
704151
Power Cylinder Tool
704152
Seal Guide
704153
Bleeder Bottle
S1178
Valve Extractor
744151
Valve Spring Installation Tool
744152
Valve Sleeve Removal Tool
GB740TK Service Tool Kit Includes:
HOW TO CLEAN VACUUM REGULATOR
1. Remove vacuum regulator 703515 from hose.
2. Remove (4) S.H.C.S. from front of regulator and disassemble.
3. Clean both pieces in clean mineral spirits and blow dry.
4. Reassemble and connect hoses.
Note: The vacuum regulator may visually appear clean, but still may be contaminated with a thin film, there-
fore, the steps above should be performed to assure best performance.
