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5. operation
ˆ
Warning! ensure that you read, understand and apply the safety instructions in section 1.
5.1.
Confirm that the workpiece is retained by interference fit (parallel or taper) only.
5.2.
Assemble the appropriate puller, see fig.2, and adjust T-handle (fig.1.A) so that tommy bar (fig.1.B) is approximately 80mm (3")
above top of ram, see fig.1.
5.3.
fit the puller claws behind the workpiece and then screw ram body down, with centre adaptor over piston end, until centre adaptor
point locates in end of shaft from which workpiece is to be pulled.
5.4.
turn t-handle clockwise, by hand only, to pull workpiece from shaft.
5.5.
do not screw T-handle in further than 25mm (1") from end of the ram (see fig.1). If workpiece requires additional movement then
unscrew t-handle to 80mm from end of ram, screw ram body down so that centre adaptor again contacts shaft and then continue
to draw workpiece up shaft.
iMportant: the maximum safe load for the puller can be achieved by hand effort alone. the use of tools or levers on the
tommy bar to increase the load will damage the puller and may result in injury.
such misuse will also invalidate the warranty.
if the workpiece does not move, with maximum puller force applied, do not hit it, or the puller, in an attempt to free it.
damage to puller/workpiece and personal injury may result: use a larger capacity puller.
fig.1
6. Maintenance
6.1.
Keep all items clean and lightly oiled. Keep all threads free
from grit and lubricate the ram regularly.
6.2.
store the ram in the closed position to prevent piston surface corrosion.
6.3.
to change oil in raM
▲
iMportant: the hydraulic system operates on a specially
formulated oil which must be replaced from time to time.
use sealey hydraulic Jack oil, available from your
authorised sealey stockist. Quote model number:
hJo500Mls for 1 x 500ml bottle or ps982/oil for 15grms
of oil for a single refill.
ˆ
Warning! use of any other oil in ram may cause ram to fail
and will invalidate your warranty. Wear appropriate eye,
face and hand protection.
6.3.1.
Dismantle by removing the ram cover (fig.3.2) with soft jaw
grips (fig.3.A) (body may have to be held in a soft jaw vice,
ensure body thread is not damaged). Caution! The cover is
spring loaded, take care when removing. remove components
2, 3, and 4 from the cylinder carefully.
6.3.2.
Screw T-handle (fig.4.5) down as far as it will go, then unscrew
and remove it from the body (fig.4.5).
6.3.3.
Push a narrow screw driver (fig.4.9), or a rod of appropriate
diameter, down the small opening in head of ram (B), in order to push components 6, 7, and 8, plus the oil, out of the main cylinder.
note: A medium force may be required.
6.3.4.
remove remaining oil from main cylinder, clean all components and replace any showing signs of damage or wear.
fig.4
fig.3
6.3.5.
Take small seal and piston (fig.5.7 & 8) and gently push them down the narrow bore of the cylinder ensuring the metal piston (8)
is first, with the concave face pointing in the direction of the T-handle, and the seal (fig.5.7) second, with the widest part of the seal
facing upwards towards the main cylinder (fig.5). Push into bore as far as possible.
© Jack sealey limited
fig.2
fig.6
fig.5
Original Language Version
fig.7
fig.8
Ps9821 issue:3 (H,4,f) - 14/03/18
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