Thrust Frame - 48 Series • Designed To Work In 156" Minimum ID Or Trenchbox Shafts • • Independent Jacking & Rotation Operation • • Capable Of Installing Pipe up to 48" OD • • Assembly consists of the thrust frame, fluid swivel with alignment adapter, make up tool and wrench set. • Two speed jacking (thrust) advancement control (100 ton [fast], 265 ton [slow]). • Three speed hydraulic operated rotation control (23, 34 and 50 rpm). • Dual rotation pressure control (0 to 10,500 ft-lbs, 0 to 26,000 ft-lbs). • Hydraulic pressure gauges for monitoring jacking, auger rotation, and cutter bit 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 @ 6,000 psi. • Rotation functions 0 to 40 or 60 gpm @ 5,000 psi. • Independent control for hydraulic make-up tool. • Hydraulic latching mechanism to advance and retract thrust block assembly. • Leveling screws for ease of frame height adjustment and leveling. • Frame skids available; 14', 10', 2' and 12". Combinations of frames can be used for various sized shafts. • Works with existing GBM tooling (240A/308A/339A/4812A). • Optional Powered Cutter Head (PCH) hydraulic control package available. • Thrust frame is equipped with three lift eyes so it can be repositioned 180° without realigning frame. • Dirt buckets available in 16.5 Cu-Ft and 30 Cu-Ft capacities. Dimensions w/14' Frame(width x length x height) Weight w/14' Frame (approx). 13,000 lbs. (5,897 kg) Cylinder Stroke Rotational Torque (Low/High) Hydraulic Motor Speed (Rotation) * From shaft floor to drive center

The quick couplers connect to the pressure, return, load sense, and case drain hydraulic hoses from the GBM Power Pack, along with the PCH hydraulic hoses. Low pressure valves for hydraulic make-up tool, auxiliary and latching functions. Two 40 inch stroke cylinders provide up to Drive Swivel Adapter With Fluid Connector Three thrust frame lift points for ease of repositioning thrust frame.

Jacking Frame Dimensions - 48 Series Dimensions are shown in inches

14’ Frame Skid Shown 4830 (30” Stroke Cylinders) Pipe Length 30 “ Pilot Tube 1 Meter Pipe 60” Pilot Tube 2 Meter Pipe 8’ Concrete Pipe 10’ Steel Pipe 20’ Steel Pipe Frame Skid Congurations Used With 4830 12” 24” 120” 168” X X X X X X X X X X X 4840 (40” Stroke Cylinders) Pipe Length 30 “ Pilot Tube 1 Meter Pipe 60” Pilot Tube 2 Meter Pipe 8’ Concrete Pipe 10’ Steel Pipe 20’ Steel Pipe Frame Skid Congurations Used With 4840 24” 120” 168” X X X X X X X X X X X X