TM  9-2815-202-34 (4) (5) (6) (7) (8) (9) (10) Swing rocker arms (11) away from injector and valves. Remove four injector clamp bolts (12), four washers (13), and four clamps  (14). Remove four fuel injectors (3) from cylinder head. Loosen twelve lock nuts (15) at upper end of push rods (16) next to rocker arm clevis. Unscrew twelve rocker arms (11) from push  rods. Remove eight valve bridges (17) from bridge guides (18). Rest cylinder head on its side and remove eight cam follower guide bolts (19), eight Iockwashers (20), and four cam follower guides  (21  ).  Discard  Iockwashers. Remove twelve cam follower spring retainers (22) from cam follower bores cylinder  head. in Pull twelve cam followers (23) and twelve push rod (16) assemblies from bottom of cylinder head. Remove twelve push rod nuts (15), twelve upper spring seats (25), twelve cam follower springs (24), and twelve lower spring seats (26) from twelve push  rods. NOTE Mark location of valve for reinstallation. With used valves, valves must go in original location. Remove sixteen exhaust valves as follows: (a) (b) (c) Position  cylinder  head  on  its  side. Using valve spring compressor (27), compress valve spring (28).  Remove two piece tapered valve locks (29). Release compressor (27) and remove upper spring seat (30), valve spring (28), lower spring seat (31), and exhaust valve (32). Change 1  5-37