Installation, Maintenance and Spare Parts Instructions
Model: Standard ‘C’ Mount (FBH04…..W) Series
Spring Applied, Hydraulically-Released Multiple Plate Brake for Wet Operation.
Installation.
Position 1-off gasket (5) over male pilot on brake housing
(4).
Locate brake shaft (1) and secure brake in position using
4-off ½" UNC mounting bolts in the through mounting
(fixing) holes provided.
Connect hydraulic pressure supply to brake pressure inlet
port. Ensure that the hydraulic pressure is set to the
required level up to a maximum of 3000 psi (200 bar) and
check that the brake disengages and re-engages
correctly.
Maintenance.
The brake is required to be kept in good working order
and must be included in the planned maintenance
program for the equipment to which the brake is installed.
This must include torque testing together with inspection
and replacement of the working parts such as friction
plates (3 & 6) and, springs (22 & 23). The frequency of
inspection depends on the duty demanded of the brake.
Dismantling (and dis-assembly).
To remove brake from its installed position, reverse
procedure previously described in the
Installation
instructions.
Place the complete brake assembly on a clean, dry
workbench.
Remove external gaskets (5) as necessary.
REFER TO DIAGRAMS FOR THE FOLLOWING.
1)
Supporting brake on face ‘A’, remove the four socket
head cap screws (SHCS) and washers (items 13 & 14)
in equal increments to ensure the spring pressure
within the brake is reduced gradually and evenly.
Alternatively, if a press is available, the cylinder
housing (8) can be restrained on face ‘B’ while
removing the four SHCS and washers (13 & 14).
The brake assembly can now be fully dismantled and
the parts examined.
2) Remove cylinder housing (8) and piston (9) sub-
assembly and dismantle if required, removing
‘O’ ring
seals (15 & 17) and backing rings (16 & 18) as
necessary.
3) Remove gasket (7) from housing (2).
4) Remove friction plates (3 & 6) and pressure plate (4).
5) Remove 2-off dowel pins (19).
6) Remove springs (22 & 23).
Note:
See chart on page 4 for spring arrangement and
quantities for the particular brake model used.
7) Should it be necessary to replace ball bearing (10) or
shaft seal (12), reverse remainder of brake sub-
assembly, supporting on face ‘C’ of housing (2).
8) Remove retaining rings (11 & 11A).
9) Using arbor press or similar to break
‘Loctite’ seal,
remove brake shaft (1) from housing (2) and lay
aside.
10)Reverse housing (2) and press out ball bearing (10).
Shaft seal (12) can also be removed if necessary.
Examination.
All components can now be examined and inspected,
paying particular attention to the following.
1) Inspect friction plates (3 & 6) and friction surface on
pressure plate (4) for wear or damage.
2) Examine friction plates (3) and brake shaft (1) for wear
or damage to the splines.
3) Examine input and output splines of brake shaft (1) for
wear or damage.
4) Examine compression springs (22 & 23) for damage or
fatigue.
5) Check ball bearing (10) for axial float or wear.
6) Examine
‘O’ ring seals (15 & 17) and backing rings (16
& 18) for damage.
OBTAIN REPLACEMENT PARTS AS REQUIRED.
Assembly.
Clean all parts thoroughly.
Reverse procedure previously outlined in
Dismantling
instructions taking particular care with.
a) Assembly of shaft seal (12).
b) Assembly of bearing (10).
c) Quantity and orientation of springs (22 & 23).
Note:
See chart on back page for spring quantities and
arrangement for the particular brake model used.
d) Assembly sequence of friction plates (3 & 6). - See
diagram.
1) Lightly lubricate rotary shaft seal (12) and assemble to
housing (2) taking care not to damage seal lip.
2) Apply ring of Loctite 641 or equivalent adhesive to full
circumference of housing (2) bearing recess adjacent
to shoulder.
Apply complete coverage of Loctite 641 to outside
diameter of bearing (10) and assemble fully in housing
(2), retaining with internal retaining ring (11). Remove
excess adhesive with a clean cloth.
Secure and seal bearing inner ring to shaft (1) using
Loctite 641 applied to bearing inner diameter, retaining
with external retaining ring (11A). Remove any excess
adhesive with a clean cloth.
3) Assemble correct quantity of springs (22 & 23) in
orientation required.
Содержание SPICER Torque-Hub FBH04 Wet Series
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