47
9–4) Gap Adjustment
When the gap nears the limit shown in Table 12 on page 39, follow these steps to, adjust the
gap. (Gap of MB-003, 005 can not be adjusted.)
[SB–004] (See Fig.33, 34 on page 41)
(1) Remove cover 7.
(2) Slightly loosen set bolt 5. (locking agent was done)
(3) Adjast gap G by inserting the feeler gauge between the stationary core 2 and armature core
3.
(4) Apply a locking agent to set bolt 5 and fixed lining fan.
(5) Install cover 7. (For water proof-type. Please check no crack on O-ring. If any, please
exchange.)
[FB–01A1, 02A1, 05A1 (See Fig.37 on page 42)
(1) Remove cover 7.
(2) Slightly loosen assembly bolt 4, and turn fixed plate !1 counterclockwise to the maximum.
Then tighten the assembly bolt. After tightening, measure the gap G, and confirm that it is
between the specification and limit. (After this operation, the gap will decrease by approx.
0.3mm.)
(3) After adjusting the gap, check the brake
,
s performance by turning the system power on and off
a few times.
(4) Install cover 7.
[FB–1D] (See Fig.38 on page 43)
(1) Remove assemble bolt 4 and manual release prevention spacer 3.
(2) Remove cover !3.
(3) Remove fan set bolt !2, and remove fan !4.
(4) Loosen assembly bolt 7, and remove spacer 5, gap adjusting shim 6, assembly bolt 7, and
fixed plate !5 together as a set. Be careful not to remove assembly bolt 7 alone; otherwise,
gap adjusting shim 6 will drop.
(5) Gap adjusting shim 6 is approx. 0.2–0.25mm thick. Reduce the number of shims according to
the amount of abrasion, and reassemble spacer 5, gap adjusting shim 6, assembly bolt 7,
and fixed plate !5 together as a set.
(6) Check the gap G, and if it is substantially different from the specification, readjust the shim.
(7) After adjusting the gap, check the brakes performance by turning the system power on and off a
few times.
(8) Install fan !4, fan set bolt !2, and cover !3. Apply a locking agent to the fan set bolt at that time.
Finally, install release bolt 4 and spacer 5.
Then install assemble bolt 4 and manual release prevention spacer 3.
9. Brake Maintenance
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