TM 5-3820-256-10
Section II. EQUIPMENT DESCRIPTION
1-7. Drilling Rig Equipment Characteristics, Capabilities, and Features. The drilling rig is an air-transportable vehicle.
It is capable of drilling a water well to 600 feet depth; it supports both air and mud drilling methods. The drilling rig
requires a three-man crew. It is designed for use in all types of environmental conditions. Figure 1-1 shows the rig's
lifting and tie-down points.
a.
Major Components Features and Capabilities.
(1)
Mast.
(a) Mud and air discharge piping.
(b) Hydraulic mast raising cylinders.
(c)
Mast lighting.
(d) Chain pulldown assembly.
(e) Chain feed sprocket assembly.
(f)
Crown block assembly.
(2)
Mud Pump System.
(a) Mud pump drive.
(b) Air clutch.
(c)
Powerend.
(d) Fluid end.
(3)
Air Compressor System.
(a) Air compressor.
(b) Air/oil separator.
(c)
Oil cooler.
(d) Air cleaner.
(e) Air clutch.
(4)
Sub-Drive Assembly.
(a) Mud pump driveshaft.
(b) Power take-off.
(c)
Drawworks driveshaft.
(d) Hydraulic pumps.
(5)
Drawworks.
(a) Hoist drum.
(b) Auxiliary drum.
(c)
Third drum.
(d) Bevel gear box.
(e) Band-type brakes.
(f)
Air clutch.
(6)
Hydraulic System.
(a) 3-micron oil filter.
(b) 40-gal oil reservoir.
(c)
Control valves.
(7) Water/Foam Injection System.
(a) Hydraulic motor.
(b) Water pump.
1-2
