Bimba Ultra Band User Manual

ULTRAN BAND

Repair Instructions

Side 1

Table of Parts

Drawing

Reference No.

1 Body 18 Plug
2 Primary End Cap 19 O Ring (Gallery)

3 Secondary End Cap 20 Piston Seal
4 Yoke Assembly (Magnetic) 21 Cushion Seal
5 Sealing Strip 22 Wear Strip
6 Cover Strip 23 Scraper Block
7 Endcap Fasteners 24 Cap Head Screw
8 Cushion Spear 25 Wire Strip
9 Cushion Screw 26 Guide Strip

10 O Ring (Cushion Screw) 27 Carriage/Slide Bearing
11 Retaining Ring 28 Clamp Wedge
12 Strip Retainer 29 Cone Nut
13 Square Nut 30 Cone Point Grub Screw
14 Flat Point Grub Screw 31 Dog Point Grub Screw
15 Dog Point Grub Screw 32 Carriage Bolt
16 Cap Head Screw 33 Wave Washer
17 O Ring (Endcap/Body)

Description

Drawing

Reference No.

Description

Bimba Manufacturing Company

Monee, IL 60449-0068

TEL: [phone] • FAX: [phone]
Support: 1-800-44-BIMBA
Visit our website at: www.bimba.com Form UBRI-1006

Dismantling and Reassembling

+ Undo and remove carriage bolt (32), washer

(33), cone nut (29) and clamp wedge (28).

+ Undo and remove grub screws (30 and 31)

only on one side of the carriage. This should
allow the guide strip and wire strip (25) and
(26) to slide out to one side. Carriage/slide
Bearing (27) can then be removed.

- Remove strip retainer (12) by unfastening the
two screws (16) and grub screw (14).

- Remove end cap fasteners (7) on both sides
of ends of the cylinder and remove end caps
(2 and 3).

- Remove yoke (4), sealing strip (5) and cover
strip (6) from cylinder body.

- Remove piston seals (20) and cushion seals
(21) being careful not to damage any surfac-

es on the piston when removing seals.

- Inspect body (1), bore and slot, and replace if
damaged - contact supplier.

- Clean piston assembly and re-lubricate using
MS-2861.

- Lightly lubricate replacement piston seals (20)
and cushion seal (21). Mount piston seals
(20) onto yoke (4). Put cushion seals (21)
into recess ensuring that the small diameter
is facing outwards.

- Lubricate sealing strip (5) lightly. Bend the
last 2cm of the strip and push through piston
yoke (4).

- IT IS VERY IMPORTANT THAT THE SEAL
STRIP IS HANDLED WITH CARE. ALWAYS
CHECK THAT THE EDGES ARE NOT DAM­AGED BEFORE ASSEMBLING INTO CYL­INDER.

- Lubricate bore of cylinder. Insert longest end
of sealing strip into body (1) followed by the
yoke (4).

- Assemble strip retainer (12) to primary end
cap (2) and insert end cap into the end of
bore where the yoke (4) is situated.

- Secure endcap (2) with end cap fasteners
(7).

- Slide yoke (4) to other end of body and repeat
operation with secondary endcap (3).

- Cut and insert cover strip (6) and clamp it with
grub screw (14). Feed through yoke (4) and
secure on other side.

- Tighten grub screw (15) on one end of cylinder
until flush with strip retainer (12). On the other
end of the cylinder, pull the sealing strip (5)
to remove slack and secure with grub screw
(15). Cut off overlapping sealing strip (5).

-Insert wear strips (22) and screw on scraper
block (23) with cap head screws (24). This
will tighten cover strip (6).

- Assemble carriage/slide bearing (27) to body
(1) and insert guide strip (26) and wire strip
(25).

- Apply Loctite 222 to thread of grub screws (30
and 31) and tighten until they are touching
the guide strip.

- Check for free movement in carriage (27).
Carriage (27) should slide freely along cyl­inder body (1) but not have any sideways
movement.

- Insert cone nut (29) and clamp wedge (28)
in position on carriage (27). Secure carriage
(27) to yoke (4) with screw (32) and washer
(33), apply Loctite 222 to threads. Do not
overtighten screws, check for free movement
of yoke/carriage assembly.

+ Instructions for dismantling and reassembling

slide bearing.

- Instructions for dismantling and reassembling
cylinder.

Test of Cylinder only

- Connect cylinder to air supply.

- Pressurize both sides of the piston yoke and
then exhaust both sides.

- Actuate the cylinder with exhaust air restrict­ed, full stroke in both directions.

- Cycle cylinder 5 times, shut off valves and
allow the pressure to stabilize for one

minute.

- Measure leak rate and check < 100 ml/min.

- Check breakout pressure < 2.0 bar.

- Check end cushioning works.

- Check function of magnet.

Maintenance

- Maintenance work should be carried out with
the compressed air system depressurized.

- To dismantle the cylinder, read instructions
above.

- Tools required:
Allen keys

Pliers

Knife
Flat blade screwdriver
Loctite 222

- Prior to servicing cylinder, ensure that area to
be used is clean and free from dirt and dust.

- Use soft rags with a mild detergent for clean-

ing.

- Sliding surfaces should be cleaned and
greased lightly at regular intervals, depend­ing on the degree of use and the working
environment.