4. OPERATION
WARNING!
Ensure that you read, understand and apply the safety instructions in Section 1.
4.1.
Confirm that the workpiece is retained by interference fit (parallel or taper) only.
4.2.
Assemble the appropriate puller, see (fig.1) and adjust T-handle (fig. 2.A) so that tommy bar (fig.2.B) is approximately 80mm (3”)
above top of ram, see (fig.2).
4.3.
Fit the puller claws behind the workpiece and then screw ram
body
down, with centre adaptor (item 9) over piston end, until centre
adaptor point locates in end of shaft from which workpiece is to be pulled. If necessary use ram extension(s) (items 7 & 8) to achieve this.
4.4.
Turn T-handle clockwise, by hand only, to pull workpiece from shaft, draw workpiece up shaft. Do not screw T-handle in further than
25mm (1”) from end of the ram (see fig.2). 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.
4.5.
IMPORTANT:
The maximum safe load for the puller can be achieved by hand effort alone.
4.6.
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.
5. MAINTENANCE
5.1.
GENERAL
5.1.1.
Keep all items clean and lightly oiled. Keep all threads free from grit and lubricate the ram regularly.
5.1.2.
Store the ram in the closed position to prevent piston surface corrosion.
5.2.
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 dealer. Quote model number: HJO500MLS for 1 x 500ml
bottle or PS982/OIL for 15gm of oil for a single refill.
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.
5.2.1.
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
bodythread is not damaged).
▲
CAUTION! The cover is spring loaded, take care when removing. Remove components 2, 3, and 4 from the cylinder carefully.
5.2.2.
Screw T-handle (fig.4.5) down as far as it will go, then unscrew and remove it from the body (fig.4.5).
5.2.3.
Push a narrow screw driver (fig.4.9), or a rod of appropriate diameter, down the small opening in head of ram (fig.4.B), in order to push
components (fig.4.6, 7, and 8) plus the oil, out of the main cylinder.
NOTE:
A medium force may be required.
5.2.4.
Remove remaining oil from main cylinder, clean all components and replace any showing signs of damage or wear.
5.2.5.
Take small seal and piston (fig.5.7 & 8) and gently push them down the narrow bore of the cylinder ensuring the metal piston (fig.5.8)
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.5.7). Push into bore as far as possible.
fig.1
PS982.V2 Issue: 5 (W) 12/11/18
Original Language Version
© Jack Sealey Limited
fig.2
fig.3
fig.4
fig.5
fig.6
fig.7
fig.8
