5-34
1. FLOW AMPLIFIER
STRUCTURE
1)
1 O-ring
2 O-ring
3 O-ring
4 O-ring
5 Washer
6 Washer
7 O-ring
8 O-ring
9 Housing
9A Amplifier valve
9B Priority valve
9C Directional valve
10 Check valve
11 Screw
12 Spring washer
13 Screw
14 Spring washer
15 End cover
16 End cover
19 Relief valve
20 Plug
21 Shock, suction valve
22 Spring seat
23 Spring seat
24 Spring guide
26 Name plate
27 Orifice
28 Spring
29 Spring
30 Spring
31 Throttle check valve
34 Orifice
35 Orifice
36 Orifice
37 Plug
38 Plug
40 Spring
41 Spring
42 Orifice
13
14
11
12
8
40
10
16
1
9A
3
41
21
7
2
27
35
31
26
9
4
38
19
6
5
20
36
37
9B
30
22
1
14
13
15
2
23
29
28
24
34
9C
34
24
28
29
23
7
21
42
25
12
11
A
A
7707ASE09
GROUP 4 DISASSEMBLY AND ASSEMBLY
5-35
TOOLS
Guide screws : M8×1.0
Hook
: Wire
2)
·
·
Hexagon keys : 4, 5, 6, 8 and 10mm
Ratchet for socket spanners
Hex socket for external : 13, 17 & 19mm
Hex socket for internal : 8 & 10mm
Multigrip pliers
Ring spanner : 13mm
Screwdrivers : 3 and 10mm
Steel Mandrels : 3, 5 and 8mm
Torque wrench : 12.2kgf·m(88lbf·ft)
Magnetic rod
·
·
·
·
·
·
·
·
·
·
(770-3ATM) FA001
DISASSEMBLY
Disassembly counter pressure valve
Unscrew plug with O-ring(Hexagon
socket for 8mm internal hexagon).
3)
(1)
①
Take out small spring(hook).
②
(770-3ATM) FA002
(770-3ATM) FA003
(770-3ATM) FA004
5-36
Take out ball(magnetic rod).
③
Take out piston.
④
(770-3ATM) FA005
(770-3ATM) FA006
Take out spring.
⑤
Counter pressure valve shown disassem-
bled.
⑥
(770-3ATM) FA007
(770-3ATM) FA008
5-37
Counter pressure valve with orifice
shown disassembled.
⑦
Removing pressure relief valve
Unscrew plug with washer(Hexagon
socket for 8mm internal hexagon).
(2)
①
(770-3ATM) FA009
(770-3ATM) FA010
Screw pressure relief valve out(10mm
hexagon key).
②
Take out washer(Magnetic rod).
③
(770-3ATM) FA011
(770-3ATM) FA012
5-38
Disassembly pressure relief valve
Hold cartridge(Multigrip pliers) and screw
the adjustment screw out(5mm hexagon
key).
(3)
①
Pressure relief valve shown disassembled.
②
(770-3ATM) FA013
(770-3ATM) FA014
(770-3ATM) FA015
Removing end cover