7-9.
Centralizer Replacement and Repair
a. Removal.
(1) Release latch bolt (1) from two centralizer
blocks (2).
(2) Remove bolt (3), lockwasher (4), and pin (5) se-
curing each centralizer block (2) to mount (6). Remove
two blocks from mount. Discard lockwashers.
b. Installation.
b. Disassembly.
(1) Remove locknut (7) flatwasher (8), spring (9)
(1) Connect two master links (11) on feed chain
and beveled washer (10) from latch bolt (1). Discard lock-
(12) to chain mounting block (3). Secure using four new
nut.
cotter pins (10).
(2) Remove lubrication fitting (11) from each cen-
(2) Install slabback (4), four shims (7) and two side
tralizer block (2).
rails (8) on feedshell (9) using four bolts (6) and new lock-
c. Assembly.
nuts (5).
(1) Install lubrication fitting (11) in each centraliz-
(3) Measure clearance between side rails (8) and
er block (2).
flange on feedshell (9). If clearance is greater than l/8 in.,
(2) Install beveled washer (10), spring (9) and flat-
remove thinner shim and remeasure. Adjust shims until
washer (8) on latch bolt (1). Secure with new locknut (7).
clearance is l/8 in. or less.
Do not fully tighten locknut.
(4) Install chain mounting block (3) on slabback (4)
d. Installation.
using three bolts (1) and new lockwashers (2).
(1) Install each block (2) on mount (6) using pin (5)
(5) Install drifter drill (see paragraph 7-7).
new lockwasher (4) and bolt (3).
(6) Adjust chain (see paragraph 7-13).
(2) Lubricate centralizer (LO 5-3820-241-12).
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