(2)
Unscrew and remove the scraper bolt nut (8).
(3)
Place a wrench on the scraper bolt (9) head and make sure that the wrench holds the bolt head securely.
(4)
Turn the scraper bolt (9) to relieve the tension on the bolt head and at the same time drive the bolt through
the bracket (14) until the head clears the bracket stop lug.
(5)
Turn the wrench and release the tension on the scraper springs (6 and 13).
(6)
Unscrew and remove the bolts (2), lockwashers (4), flatwashers (3), and nuts (5).
(7)
Drive out the scraper bolt (9) and remove the scraper (1).
c. Inspection. Inspect the scrapers for wear, cracks, pitting, and damage. Straighten the scrapers if bent or
twisted. Check the tension of the scraper springs and replace if necessary. Inspect all bolts, screws, and nuts for
corroded, damaged, and stripped threads. Clean the threads with a stiff wire brush and apply a few drops of engine oil
before reassembling the scrapers. Always use new cotter pins when reassembling the scraper bolts.
d. Cleaning. Wash all parts in cleaning solvent and wipe them dry with a soft absorbent cloth.
e. Installation (fig. 75).
(1)
Install the scraper bolt (9) and springs (6 and 13) on the scraper (1).
(2)
Install and tighten the mounting bolts (2), lockwashers (4), flat washers (3), and nuts (5).
(3)
Install the scraper bolt nut (8).
f.
Spring Tension Adjustment (fig. 75).
(1)
Back off the scraper bolt nut (8) about three turns.
(2)
Push the scraper bolt (9) until the head clears the stop lug on the bracket (14).
(3)
Place a wrench on the scraper bolt (9) head and turn the bolt to increase the tension. Make sure that the
wrench will not slip while turning the scraper bolt.
(4)
Hold the scraper bolt (9) head with the wrench and drive the bolt into the bracket until the stop lug of the
bracket (14) locks the scraper bolt head.
1
Steering roll scrapers (2 req'd)
8
Nuts, hex, slotted, 1-8 NC (2 req'd)
2
Bolts, hex hd, 5/16-18 NC x 2 (4 req'd)
9
Scraper bolts (2 req'd)
3
Washers, flat, std, 5/16 (4 req'd)
10
Screws, cap, 5/16-18 NC x 2 (4 req'd)
4
Washers, lock, std, 5/16 (4 req'd)
11
Scraper mounting brackets (2 req'd)
5
Nuts, hex 5/16-18 NC (4 req'd)
12
Washers, lock, std, 5/16 (4 req'd)
6
Scraper springs, left (2 req'd)
13
Scraper springs, right (2 req'd)
7
Pins, cotter, 3/16 x 2 (2 req'd)
14
Mounting brackets with stop lugs (2 req'd)
Figure 75--Continued.
189
