Adjustments For 48520 Pruners - Greenlee LHFS-210003 Mode D'emploi

Adjustments for 48520 Pruners

Wear eye protection when operating
or servicing this tool.
Failure to wear eye protection can
result in serious eye injury from
flying debris or hydraulic oil.
Do not dress the blade or inspect, adjust or clean
tool when it is connected to a power source.
Accidental start-up can result in serious injury.
Failure to observe these warnings can result in
severe injury or death.
Tension Adjustment
Follow the tension adjustment procedure carefully.
Too little tension between the hook and blade may
result in damage to the tool.
The hook and blade must fit together snugly. If the fit is
too tight, the cutter does not perform properly. If the fit
is too loose, the tool does not cut cleanly.
1. Disconnect the tool from the power source.
2. Remove items 1–9 in numerical order. See the
Cutter Head Disassembly illustration.
3. Set the tension to a heavy amount of drag as
follows:
Without connecting the tool to a hydraulic power
source, move the blade by hand. Tighten or loosen
item 11 until the cutter produces a heavy amount of
drag when the blade is moved by hand.
4. Loosen the shoulder bolt one quarter (1/4) turn.
5. With one wrench on the bolt and one on the nut,
tighten the nut.
6. Check the tension again by moving the blade by
hand. When tensioned correctly, the cutter produces
a moderate amount of drag.
7. Assemble in reverse numerical order.
Notes:
• Tighten the hardware so that the blade and hook fit
together snugly.
• If the slot in the bolt lock (8) does not line up with the
hole in the cutter brace (17), turn the bolt lock over.
This allows it to line up.
Greenlee Tools, Inc.
Closure Adjustment
The closure adjustment is set at the factory and should
not be adjusted until repeated blade sharpening or new
blade installation makes it necessary.
When open, the flat edge of the cutter blade should be
flush with an imaginary line between the two protrusions
on the cutter link.
Imaginary Line
Flat Edge of
Cutter Blade
When closed, the blade should overlap about 5 mm
(3/16") of the face of the cutter hook.
1. Disconnect the tool from the power source.
2. Loosen the nut on the lower end of the outer exten-
sion tube.
• If the blade overlaps less than 5 mm (3/16"),
thread the extension tube farther into the actuator.
• If the blade overlaps more than 5 mm (3/16"),
thread the extension tube farther out of the
actuator.
3. Tighten the lock nut.
4. Connect the tool to the power source and actuate
several times. The action should be smooth and
uniform from fully open to fully closed. Snug up any
loose linkage hardware.
Cutter Head Disassembly
13
10
16
9
4455 Boeing Dr. • Rockford, IL 61109-2988 USA • 815-397-7070
Hydraulic Pruners
11
9
17
12
7
8
15
14
4
15
5
6
2
3
1