LHFS-210003 Pruner
Greenlee / A Textron Company
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
10
Disassembly
Complete disassembly of the tool is not recommended.
If a complete overhaul is necessary, return the tool to
your nearest Greenlee Utility Authorized Service Center.
Skin injection hazard:
• Do not use hands to check for
leaks.
• Do not hold hose or couplers
while the hydraulic system is
pressurized.
• Depressurize the hydraulic system
before servicing.
Oil under pressure easily punctures
skin causing serious injury, gangrene,
or death. If you are injured by escap-
ing oil, seek medical attention
immediately.
Do not disconnect tool, hoses, or fittings while the
power source is running or if the hydraulic fluid is
hot. Hot hydraulic fluid can cause serious burns.
Procedure for connecting or disconnecting hydraulic
hoses, fittings, or components:
1. Move the flow lever on the hydraulic power
source to the off position.
2. Stop the hydraulic power source.
3. Follow the sequence under “Hose Connections”
in the Operation Manual to prevent pressure
buildup. In case some pressure has built up,
loosen hoses, fittings, or components slowly
The disassembly procedure is divided into sections of
the tool. Complete disassembly of tool is seldom neces-
sary. Disassemble only the area(s) necessary to correct
problem. See Parts illustrations for identification of parts
as they are removed.
Disassembly should be done on a flat, clean surface.
Some parts may fall free during disassembly. To prevent
part loss or damage, keep the tool as close to working
surface as possible.
Inspect all parts as they are disassembled and mating
parts in tool that are not removed for signs of damage,
wear, cracks, etc. Replace any parts which appear to be
damaged.
When removing O-rings which must slide over sharp
surfaces, be careful not to damage the O-rings. Use a
rolling motion, and apply hydraulic fluid to ease removal
of O-rings if necessary.
Cutter Head
1. Remove the #10-32 x 5/18 inch hex head machine
screw (23), #10 lockwasher (24), both link arms (25,
28), two lock pins (27) and the spacer (26).
2. Remove the two 1/4-28 x 7/8 inch hex head cap
screws (17) and 1/4-28 hex lock nuts (19) which
secure the cutter and mounting assembly (18) onto
the extension tube (10).
3. Insert one of the 1/4-28 x 7/8 inch hex head cap
screws (17) into the blind threaded hole on the
blade side of cutter mounting bracket (18). Tighten
bolt until cutter mounting bracket is loose on the
extension tube (10).
4. Remove the cutter and mounting assembly from the
extension tube (10).
5. Remove the #10-32 x 1/4 inch socket head cap
screw (32). The #10 lock washer (24) and the
lock (31).
6. Remove the 3/8-24 hex nut (33) and cutter bolt (22).
Remove the cutter blade (29) and thin brass washer
(67).
7. Remove the two 1/4-28 x 7/8 inch hex head cap
screws (17) and 1/4 inch lock washers (20) which
secure the cutter brace (21) and cutter hook (30) to
the cutter mounting bracket (18). Remove the cutter
brace (21) and cutter hook (30).
Outer Extension Tube and Inner Extension Rod
1. Loosen the extension connector nut (15) and slide
it away from the actuator assembly. Remove the
outer extension tube (10) by sliding it over the inner
extension rod and extension rod end (6, 7).
2. If necessary, remove the lower collet ring (8), clamp
ring (9), clamp collet (12), upper collet ring (13),
extension connector nut (15) and hand grip (11)
from the outer extension (10).
3. Remove the inner extension rod (6) from the shaft
of the piston (2) using two 1/2 inch open-end
wrenches on the wrench flats milled in the swivel
piston shaft.
4. If necessary, remove the extension rod end (7) from
the inner extension rod (6).
