Hydraulic Power Lift - Bolens QS Series Service Manual

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HYDRAULIC SYSTEM (Continued)
ALL MODELS
REPAIRING THE HYDRAULIC
CYLINDER FIGURE 6·3
To remove the piston rod assem-
bly (A) from the cylinder, the in-
ternal snap ring (B) and the hose
fitting, which goes through hole
(C) in the cylinder tube, must be
removed.
PISTON ROD REMOVAL
1. Remove 90° elbow from cyl-
inder tube.
2. Pull the piston rod out until
it is fully extended.
3. Pinch snap ring together
and pull on piston rod until
the assembly slides out of
the cylinder housing.
When the piston rod assembly is
removed from the cylinder tube
hex nut (D) can be loosened and
the piston, cylinder head, and re-
lated "0" rings and ring washers
removed. All parts should be in-
spected and new "0" ring·s
installed. IMPORTANT: Grease
"0" rings to prevent damage dur-
ing assembly.
HYDRAULIC POWER LIFT
A
I
FIGURE 6-5
HYDRAULIC CYLINDER LEGEND
1. Piston Rod Assembly
2. Oil Seal
3. Snap Ring
4. Ring Washer
5. "0" Ring
6. Ring Washer
7. "0" Ring
8. Cylinder Head
9. Ring Washer
10. "0" Ring
11. Ring Washer
12. Piston
13. "0" Ring
14. Hex Nut
15. Cylinder Tube
FIGURE 6-6
QS, QT
&
1900 SERIES
Page 6-5 REV. 12/78