308A/339A Jacking Frame
308A/339A Jacking Frame
- Dimensions:
- 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)
- Includes latching frame, drive swivel adapter, alignment adapter, and operator platform.
- Two-speed hydraulic operator-controlled motor.
- Hydraulic latching mechanism for gear box assembly.
- Hydraulic pressure gauges for monitoring system pressures.
- Quick coupler connections with lock for hydraulic hose installation.
- Dual motor travel function for advancing gear box.
- Jacking functions: 0 to 26 gpm @ 5,000 psi.
- Rotation functions: 0 to 34 gpm @ 5,000 psi.
- Includes Powered Cutter Head (PCH) / Powered Reaming Head (PRH) controls.
- Independent control for hydraulic make-up tool.
- Optional shaft adapters and frame extensions available.
- Four adjustable legs with leveling screws.
- Designed for 96”/108”* Minimum ID or Trenchbox Shafts.
- Independent Jacking & Rotation Operation.
- 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
- High pressure valves for various control functions.
- Quick couplers for hydraulic hoses from GBM P100Q or P150Q Power Pack.
- Drive Swivel Adapter with Fluid Connector and Alignment Adapter.
- Dual travel motors for advancing gear box along frame rails.
- Operator platform 18” above shaft floor for safety.
- Low pressure valves for hydraulic make-up tool and latching functions.
- Frame extensions available in 16”, 24”, 40”, and 56”.
Catalog excerpts
The quick couplers connect to the pressure, return, load sense and case drain hydraulic hoses from the GBM P100Q or P150Q Power Pack. High pressure valves for jacking, rotation, frame travel, and PCH/PRH control functions. Low pressure valves for hydraulic make-up tool, rotation speed and hydraulic latching functions. Operator platform located 18” above shaft floor provides firm footing to keep the operators above the water and mud. Drive Swivel Adapter With Fluid Connector And Alignment Adapter Hydraulic pressure gauges for monitoring thrust and rotation system pressures. Dual travel motors...
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