TM   10-3930-643-20 INTRODUCTION.  (cont) 1 - 9. Equipment   Data.   (cont) g.    B r a k e s . Parking/emergency Type Characteristics h. Air   Compressor. Type Cylinders Bore   size Stroke Capacity   at   1250   rpm i . Wheels. Drum   type   expanding   (mounted on   rear   axle) .   Manual   activation .   Spring   engaged l Air   disengaged Single   stage,   reciprocating piston 2 2.0   inch 1.625   inch 7.4   cubic   feet Type Interchangeable  rim  and  wheel assemblies Tires   (4) Tubeless Size 20.5  X  25-16  ply  L3 Pressure 50   psi j . Steering. Type Common   with   hydraulic   circuit Steering   Hydraulic   Pump Steering   Hydraulic   Cylinders Bore   dia. 3  inch Stroke 16.25   inch k. Cab   Serial/Number   2001   and   Above. Type Low   profile   enclosed   cab Features .   Windows   (Sealed,   safety   glass) .    1   Door   (Entry   left   hand   side) .   Inside   mounted: Adjustable   operator’s   seat 3   windshield   wipers Heater Defroster   fans 1. ROPS   (Rollover   Protective   Structure)   Serial/Number   2000   and   Below. Type Open 1-6