Cascade 40D User Manual

669224-R5
ERVICE
S
33
CL1427.eps
5.4-3 Cylinder Reassembly
1 Lubricate all new seals and rings with petroleum jelly or
equivalent.
2 Note the direction of the U-cup seals. If installed
backwards, the seals will not work properly. For proper
seal replacement see illustration below.
3 Polish the piston and retainer chamfer angle with emery
cloth. This allows the seal to slide over the chamfer easier.
4 Install the new seals on the piston and retainer. Hook one
side of the seal in the groove and push it over the piston or
retainer, as shown.
5 Install the piston on the rod and tighten the piston retaining
nut to following value:
25D, 35D – 55–70 ft.-lbs. (75–95 Nm)
40D, 50D – 90–110 ft.-lbs. (125–145 Nm)
70D, 80D, 100D – 400–425 ft.-lbs. (542–575 Nm)
6 Place the piston loader in the cylinder shell. The loader
must cover all of the threads but not contact the thread
relief chamfer. The length of the stop fins can be trimmed
with a sharp knife if more engagement is needed. The
piston will not enter the shell if the loader contacts the
thread relief chamfer.
7 Apply a thick film of petroleum jelly to the inside of the
cylinder shell, piston loader and piston seals.
8 Insert the rod-piston assembly though the loader into the
cylinder shell. If resistance is encountered, tap the rod
end with a rubber mallet.
9 Remove the loader from the shell.
CAUTION: Do not scratch the cylinder bore.
10 Place the retainer loader over the rod end.
11 Apply a thick film of petroleum jelly to the inside of the
cylinder shell, retainer loader and all retainer shells.
12 Slide the retainer over the retainer loader and screw it into
the shell. Remove the retainer loader. Tighten the retainer
to the following:
25D, 35D, 40D, 50D – 125 ft.-lbs. (100–170 Nm)
70D, 80D, 100D – 325–375 ft.-lbs. (440–508 Nm)
NOTE: Current production cylinders have the restrictor
cartridges installed in the rod end port, as shown below. Early
production cylinders have the restrictor cartridges installed in
the base port.
CL1070.eps
RC0320.eps
CL1456.eps
3
4
6
6
8
7
11
10
12
12
2
2
5
Retainer
Cylinder Shell
Stop Fins
Do not allow lower edge
of loader to contact thread
relief chamfer
Retainer
Restrictor
Cartridge
Note seal
direction
Note seal
direction

Cascade 40D Specifications

General

Brand	Cascade
Model	40D
Category	Power Tool
Language	English