Hitachi ZX200-5G Workshop Manual page 273

 Assembly of Boom Anti-Drift Valve (Selector Valve)
30. Install backup rings (24, 28) and O-rings (25, 26) to
sleeve (29).
31. Apply grease onto seat (22) and spring (21) in
order to prevent from falling off. Face the hole on
spool (30) to the poppet (23) side. Install spool (30),
poppet (23), seat (22), and spring (21) to sleeve (29).
Install the sleeve (29) assembly to housing (1).
32. Install O-ring (35) to plug (36). Install spring (33),
piston (34), O-ring (31), and plug (36) to body (32).
33. Install O-rings (13) (5 used) to housing (1). Install the
body (32) assembly with socket bolts (6) (3 used).
l : 8 mm
m : 62 N·m (6.2 kgf·m, 46 lbf·ft)
34. Tighten plug (36).
j : 38 mm
 Assembly of Boom Anti-Drift Valve (Check Valve)
35. Install O-rings (79, 81) to plugs (80, 82).
36. Install poppet (75), spring (76), O-rings (77, 78), and
O-rings (13) (3 used) to housing (1).
37. Install body (40) to housing (1) with socket bolts (6)
(4 used).
l : 8 mm
m : 62 N·m (6.2 kgf·m, 46 lbf·ft)
38. Tighten plugs (80, 82).
SECTION 3 UPPERSTRUCTURE
Group 9 Control Valve
W3-9-3-17
 Assembly of Arm 2 Flow Rate Control Valve
39. Install O-rings (115, 120) (3 used for each) to plugs
(114, 119) (3 used for each) as shown in detail D, E,
and F.
40. Install spool (118), spring (117), and spring seat
(116) to body (123) as shown in detail D. Temporarily
tighten plugs (114, 119) to body (123).
j : 24 mm
41. Install spool (122), spring (121), and spring seat
(116) to body (123) as shown in detail F. Temporarily
tighten plugs (114, 119) to body (123).
42. Install spool (124), spring (125), and spring seat
(116) to body (123) as shown in detail E. Temporarily
tighten plugs (114, 119) to body (123).
43. Install poppets (98, 99), spring (100), plug (101),
spring (87), orifice (128), and O-rings (13, 77) to
housing (1) as shown in detail D.
44. Install poppets (108, 109), spring (110), plug (111),
spring (87), and O-rings (77, 78) to housing (1) as
shown in detail E.
45. Install poppet (112), spring (113), and O-rings (77,
13) to housing (1) as shown in detail F.
46. Install plug (127) and O-ring (126) to body (123).