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PRIOR TO DISASSEMBLY
Thoroughly clean the exterior of the tool.
Obtain a seal kit so all seals exposed may be replaced.
Note orientation of seals before removing them. Install new
seals in the same way.
PRUNER DISASSEMBLY
KNIFE BLADE, HOOK, LINK BAR &
SLIDE HEAD DISASSEMBLY
1. Remove the cotter pin (36) and clevis pin (29) which con-
nect the link bar to the knife blade.
2. Remove the roll pin (32), hex slotted nut (47), washer
(33) and knife bolt (35). Slide the knife blade out from be-
tween the hook (34) and slide head (38).
3. To remove the link bar (39), remove the cotter pin (36)
and clevis pin (40).
4. To remove the hook (34), remove the two capscrews (31)
and washers (30).
IMPORTANT
The slide link bolt (25), slide head (38) and internal
tube (20) need to be thoroughly cleaned of pitch and
other debris prior to performing the next step.
5. Using a 1/2 inch open end wrench on the slide head
(38) wrench fl ats, and a 1-1/2 inch open end wrench on the
external tube (28) wrench fl ats closest to the slide head,
unscrew the slide head counter clockwise to remove it from
the external tube. Once unscrewed, slide the slide head off
of the internal tube (20) and slide link bolt (25). Pick out and
discard the o-ring (24).
EXTERNAL TUBE ASSEMBLY
6. Using 1-1/2 inch open end wrenches on the lock nut (27)
wrench fl ats, and on the external tube wrench fl ats clos-
est to the lock nut, loosen the lock nut by turning it counter
clockwise. Unscrew the external tube off of the tube cou-
pling (26) and then slide it off of the internal tube.
SERVICE
INTERNAL TUBE ASSEMBLY
7. Using 1/2 inch open end wrenches on the internal tube
(20) wrench fl ats and on the piston rod (21) wrench fl ats,
unscrew the internal tube from the piston rod by turning it
counter clockwise.
8. The slide link bolt (25) is installed with Loctite™. If it re-
quires removal, apply heat to the area of the threaded joint
to break down the Loctite™, then unscrew the slide link bolt
counter clockwise.
TUBE COUPLING
9. Using a 1-1/2 inch open end wrench on the tube coupling
(26) wrench fl ats and a 1-3/4 inch open end wrench on the
cylinder (1) wrench fl ats, unscrew the tube coupling from
the cylinder oil tube by turning it counter clockwise. Slide
the tube coupling off of the piston rod. Pick out the o-ring
(22) and the back-up ring (23) and discard.
PISTON & PISTON ROD
10. Remove a coupler or hose to prevent a vacuum be-
tween the piston and valve handle.Pull on the piston rod to
remove the piston rod and piston from the cylinder. Re-
move and discard the o-rings (13 & 14).
a. The piston assembly for the o.c. system is removed from
the piston rod by turning the piston nut (19) counter clock-
wise to unscrew it off of the piston rod.
b. The o.c. piston assembly is disassembled by unscrewing
the piston counter clockwise from the piston nut.
c. The piston (16) for the c.c. system is removed from the
piston rod by turning the piston counter clockwise to un-
screw it off of the piston rod.
CYLINDER & CYLINDER OIL TUBE
11. The cylinder is removed by unscrewing it counter clock-
wise.
12. The cylinder oil tube (21) is removed by unscrewing it
counter clockwise. Use oil tube clamp 01239.
VALVE HANDLE ASSEMBLY
13. Using a small punch, drive out the roll pin (11) that
retains the valve spool (5) to the trigger (46).
14. Unscrew two capscrews (9) and set aside. Pull the
trigger and trigger guard (10) away from the valve handle.
Set the spring (12) aside.
15
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