48520 Pruner
Greenlee / A Textron Company
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
11
Disassembly
(cont’d)
Ram and Piston Actuator
1. Remove jam nut (68) from upper end actuator (27).
2. Use a strap wrench to unscrew cylinder (19) from
upper end (27). The piston and rod assembly (20)
will remain in cylinder (19) when unscrewing and
removing from upper end (27).
3. Remove internal retaining ring (32), seal retainer (31),
rod seal (30), rod seal support (29), felt breather filter
(28), and O-ring (15) from upper
end (27).
4. Remove piston and rod assembly (20) with seal
(21, 22), etc., from cylinder (19).
5. Remove the seal (21, 22) from piston and rod
assembly (20).
6. Remove the internal retaining ring (18) from inside
of piston and rod assembly (20). Remove seal body
(26) from piston and rod assembly and O-rings
(24, 25) from seal body (26).
7. Remove O-ring (15) from handle (1). Remove
internal retaining ring (18) which secures return tube
assembly (17) into the handle (1). Remove return
tube assembly. Remove O-ring (16) from return tube
assembly.
8. Remove the round slotted head machine screws
(14) and internal tooth lock washers (13). Remove
trigger guard (12).
9. Remove the external retaining rings (11) and slide
trigger pivot pin (10) out of handle (1). Remove
trigger (9).
10. Remove retaining ring (6) from valve handle (1)
opposite trigger side. Also remove washer (8) and
spring (7). Remove retaining ring (6) from trigger
side, washer (5). Remove spool (3).
Inspection
1. Cutter Blade (53): Cutting surface must be smooth
and free of grooves, nicks, or gouges. If blade has
minor grooves, nicks, or gouges, remove them and
sharpen blade with a file or the pocket whetstone
provided with tool. If blade has severe damage,
replace the blade. Both holes in blade are pivot
holes. If either hole is out-of-round, replace blade.
2. Cutter Hook (52): The surface of the cutter hook
which mates with the cutter blade (53) must be
smooth and free of nicks or gouges. If hook has
minor blemishes, remove them with a file. The inner
radius of hook’s cutting surface must be beveled
slightly with a pocket whetstone provided with tool.
3. Valve Spool (3): All surfaces must be smooth
and free of grooves, nicks, or scratches. If it has
grooves, nicks, or scratches, replace the spool.
4. Piston and Rod Assembly (20): All surfaces must
be smooth and free of grooves, nicks, or scratches.
If either component has grooves, nicks, or
scratches, replace the component.
5. Cylinder (19): All inner surfaces must be smooth
and free of grooves, nicks, or scratches. If either
component has severe grooves, nicks, or scratches,
replace the component.
6. Inner Extension Assembly (42): All components
must be straight and free of damage. Replace if
bent or damaged.
7. O-Rings and Seals: Always replace O-rings and
seals in components that have been disassembled
with new O-rings and seals during assembly. A
packing kit is available that includes all O-rings and
seals.
8. Felt Breather Filter (28): Always replace the felt
breather filter with a new breather filter during
assembly.
