Gage Bilt GB703SR8VT Manual - Page 11
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HANDLE
To inspect air cylinder bore, remove base cover (744124). Any further disassembly will require removal of the manifold handle (744303) first.
For complete disassembly, start by removing base cover (744124). Next, holding tool upright, remove four screws (A-928). Lift manifold
(744303) from handle assy (744129) and set aside o'ring (S832) and gasket (704129). Empty all hydraulic oil into an approved container and
dispose of in accordance with all environmental regulations applicable to your area. Place piston rod wrench (704149) down into top of power
cylinder (743131) and into the hex of piston rod assy (744136). While holding this wrench, remove flexlock nut (400559) using a 7/16" socket
wrench. Still holding piston rod wrench (704149), remove air piston assy (744121) using packing plug wrench (704150), by turning counter-
clockwise. When air piston assy (744121) is completely free from piston rod assy (744136), tap or push on the piston rod wrench (704149) to
eject air piston assy (744121) from bottom of handle assy (744129). After removal of air piston assy (744121), slide piston rod assy (744136)
back up to the end of its travel. Using packing plug wrench (704150) remove packing plug (744118). With packing plug removed, power cylin-
der (743131) can be removed by pushing on power cylinder tool (704151) when inserted into top of power cylinder (743131).
To reassemble the handle assy (744129), reverse the above procedure, being certain that all o'rings are properly lubricated before installation.
Torque packing plug (744118) to 45 foot lbs. Attach the seal guide (704152) to the piston rod assy (744136) and tap the piston rod assy
(744136) through the packing plug (744118). Attach air piston assy (744121) and flexlock nut (400559) torque flexlock nut to 40 inch lbs. With
the piston rod assy (744136) in the down position, fill oil passage on top of handle assy (744129) with automatic transmission oil, Dexron III or
equivalent, when looking at top of handle assy (744129) the oil passage is the hole that has a counterbore for (S832) o'ring. Replace gasket
(704129) and o'ring (S832), just prior to replacing manifold-handle (744303). (See Filling & Bleeding instructions.)
AIR VALVE
WARNING:
Disconnect tool from its air source before disassembly.
To disassemble, first disconnect tool from its air source. Remove pin (744149) and muffler (744143). Insert valve extractor (S1178) into end of
valve plug (744142) and pull it out. Using the same procedure, pull out valve spool assy (743142). NOTE: It should never be necessary to re-
move valve sleeve (743144) unless the ports in the valve sleeve (743144) are plugged from contaminated air. If ports are plugged, use needle
nose pliers to grasp end of spring (744144), turning clockwise and pulling to dislodge from groove in casting. NOTE: Valve spring tool
(744151) will facilitate the proper installation of the spring (744144), valve sleeve (743144) can be pulled out using valve sleeve removal tool
(744152).
S832 - O'RING
704129 - GASKET
704313 - PLUG
744129 - HANDLE ASSY
S885 - RETAINING RING
743131 - POWER
403805 - O'RING
S892 - O'RING
S908 - BACK-UP RING
A-201 - O'RING
744136
PISTON ROD ASSY
(INCLUDES S908 AND A-201)
A-928 - SOCKET
HEAD CAP SCREW (4)
CYLINDER
A-249 - SWIVEL
400784 - O'RING
743144 - VALVE
SLEEVE
744144 - SPRING
400779 - O'RING
743142 - VALVE SPOOL
ASSY
400785 - O'RING
744142 - VALVE PLUG
400785 - O'RING
744143 - MUFFLER
744149 - PIN
11
A-287 - O'RING
S115 - BACK-UP RING
A-271 - O'RING
744118 - PACKING PLUG
S115 - BACK-UP RING
A-287 - O'RING
S909 - BACK-UP RING
401462 - QUAD RING
S909 - BACK-UP RING
744121 - AIR PISTON ASSY
400559 - FLEXLOCK NUT
S12 - O'RING
744124 - BASE COVER
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