MAINTENANCE STANDARD STEERING CYLINDER
EX20 Series 50-27
STEERING CYLINDER
Power steering cylinder
(Lifting height: 3 m)
INSPECTION
Item Unit FD100–FD115 FD135–FD160E
Cylinder (inside diameter x outside diameter) mm φ 90 × φ 102 φ 100 × φ 112
Stroke mm 312 312
Outside diameter of rod mm φ 60 φ 70
Symbol Inspection item
Judgement standard
Remedy
Standard size (mm) Repair limit (mm)
A
Clearance between cylinder and
piston
0.05–0.25 0.4
Replace
B
Clearance between piston rod and
bushing
0.03–0.18 0.3
C Piston ring
Scratches that catch finger nail, dents, streaks,
hollows
D Inside surface of cylinder
Scratches that catch finger nail, dents, streaks,
hollows
(Tightening torque)
1 Tightening of Cylinder head 441–539 Nm {45–55 kgm}
Coat thread with
Loctite
2 Cylinder mounting bolt (rear axle) 735.5–828.5 Nm {75–84.5 kgm}
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