308A/339A Jacking Frame0 pages

Thrust Frame - Latching - 308A / 339A
Part No. FA40032F (308A), FA43500F (339A)
• Designed To Work In 96”/108”* Minimum ID Or Trenchbox Shafts •
• Independent Jacking & Rotation Operation •
The GBM 339A latching frame is shown with round shaft adapters.
FEATURES
• Assembly consists of the latching frame, drive swivel adapter, alignment adapter and operator platform.
• Two speed hydraulic operator controlled motor.
• Hydraulic latching mechanism to advance and retract gear box assembly.
• Hydraulic pressure gauges for monitoring jacking and rotation system pressures.
• Quick coupler connections with lock for easy and secure hydraulic hose installation.
• Dual motor travel function for ease of advancing gear box along the frame.
• Jacking functions 0 to 26 gpm @ 5,000 psi.
• Rotation functions 0 to 34 gpm @ 5,000 psi.
• Complete with Powered Cutter Head (PCH) / Powered Reaming Head (PRH) controls.
• Independent control for hydraulic make-up tool.
• Optional round and square shaft adapters, and frame extensions available to conform to shaft requirements.
• Four adjustable legs with leveling screws for ease of frame height adjustment and leveling.
SPECIFICATIONS
Dimensions (width x length x height)
308A .........48 x 92 x 62 in. (1219x2337x1575mm)
339A .......52 x 108 x 62 in. (1321x2743x1575mm)
Assembly Weight With Shaft Adapters
308A ........................................6,000 lbs. (2,722 kg)
339A ........................................6,600 lbs. (2,994 kg)
Latching Positions On Center ...........8 in. (203 mm)
Cylinder Stroke ............................. 10.5 in. (267 mm)
Operating Pressure (Max.) ... 5,000 psi ( 34,475 kPa)
Elevation** .............. 31 to 48 in. (787 to 1,219 mm)
Operating Grade (Max.) ......................................10%
Pipe OD Diameter (Max)
308A ...........................................28.5” (724 mm)
339A ...........................................31.5” (800 mm)
Gear Box
Rotational Torque***..10,500 ft-lbs (14,238 N•m)
Jacking Force ............................ 100 Ton (91 mt)
Pull Back Force ......................... 50 Ton (45 mt)
Hydraulic Motor ........................................ Two Speed
High Speed ................................................ 50 rpm
Low Speed ................................................ 25 rpm
* 96” ID Dia. Shaft - 308A; 108” ID Dia Shaft - 339A
** From shaft floor to drive center
*** Output torque in low speed @ 5,000 psi
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GBM_LatchingFrame308A/339A