Fiat Kobelco EX355 Tier2, Техническое руководство

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EX355 W2-5-1
CONTROL VALVE
SM6243
Preparation
1. Park the machine on a firm, level surface.
2. Stop the engine. Push the air release valve on top
of the hydraulic oil tank to release any remaining
pressure.
Refer to "Hydraulic Circuit Pressure Release Pro-
cedure” on page W4-2-12.
REMOVE AND INSTALL CONTROL VALVE
3. Remove hydraulic oil tank cap. Connect a vacuum
pump to maintain negative pressure in the hydrau-
lic oil tank.
NOTE - Be sure to run the vacuum pump continuously
while working.
Installation
NOTE - Refer to “Removal” section above for wrench
sizes and tightening torques.
1. Install control valve to frame and tighten the bolts.
2. Connect all hoses, pipes and connectors to the
control valve.
IMPORTANT - After completing installation:
Check hydraulic oil level. Add oil if necessary. Run the
engine. Check the components for any oil leakage.
A = Travel Left
B = Spare
C = Boom 2
D = Arm 1
E = Swing F = Travel Right
G = Bucket
H = Boom 1
L = Arm 2
M = Bypass Shut-Off Valve
Removal
NOTE - Attach caps to hoses and pipes.
Attach labels or tags to hoses and pipes, to aid in
assembly.
1. Disconnect all hoses, pipes and connectors from
the control valve.
: 17 mm
: 9.8 N m (1 kgf m, 7 lbf ft)
: 19 mm
: 34 N m (3.5 kgf m, 25 lbf ft)
: 22 mm
: 49 N m (5 kgf m, 36 lbf ft)
: 36 mm
: 175 N m (18 kgf m, 130 lbf ft)
: 8 mm
: 64 N m (6.5 kgf m, 147 lbf ft)
: 10 mm
: 108 N m (11 kgf m, 80 lbf ft)
WARNING
Control valve assembly weight: 240 kg (530 lb)
2. Remove control valve mounting bolts.
: 24 mm
: 205 N m (21 kgf m, 150 lbf ft)
WARNING
Escaping fluid under pressure can penetrate the skin, causing serious injury.
Avoid the hazard by relieving pressure before disconnecting hydraulic or other lines.
Hydraulic oil may be hot just after operation. Hot hydraulic oil may spout, possibly causing severe burns.
Be sure to wait for oil to cool before starting work.
The hydraulic oil tank cap may fly off if removed without releasing internal pressure first. Push the air release
valve on top of the hydraulic oil tank to release any remaining pressure.