TM 9-2320-260-34-1
9-2. FRONT AXLE ENGAGEMENT AIR CYLINDER MAINTENANCE (Contd)
1. Place washer (6), spring (4), and retainer (3) in end of piston (7) and install with retaining ring (2).
Ensure retaining ring (2) seats in groove (8) of piston (7).
2. Repeat step 1 for other end of piston (7).
3. Install two new seals (5) in grooves (9) of piston (7), with lips of seals (5) toward ends of piston (7).
4. Lightly oil seals (5) on piston (7) and install piston (7) on air cylinder (1). Ensure lips of seals (5) lie
flat on air cylinder (1).
e. Installation
1.
Apply a light coat of sealing compound to new gaskets (11) and (12) and position gaskets (11)
and (12) on ends of air cylinder (1).
2.
Position shifter shaft (13) in neutral (center) position and install air cylinder (1) and piston (7) on
shifter shaft (13) and front output shaft cover (14) with new locknut (10). Ensure gasket ( 12) is
correctly positioned between air cylinder (1) and front output shaft cover (14).
3.
Ensure gasket (11) is alined on air cylinder (1) and install cover (17) on end of air cylinder (1) with
four new tab lockwashers (16) and screws (15). Finger tighten screws (15).
4.
Bend long tabs (20) of tab lockwashers ( 16) over comers of cover (17) to hold tab washers (16) in
place.
Tighten screws (15) 6-10 lb-ft (8-14 Nm) following tightening sequence shown.
5.
Bend short tab (21) of tab lockwashers (16) over heads of screws (15). Loosen screws (15) slightly if
6.
necessary to aline hex flat of screws (15) with tab of tab lockwashers (16).
Wrap male pipe threads with anti seize tape and install adapter (18) and air line (19) on cover (17).
7.
9-4
