4-219. MITER BOX - Continued
Rotate bevel gears (1 1) to align spring pins (1 0) with grease fitting and relief fitting holes.
Use a drift pin through grease fitting and relief fitting holes to drive spring pins (1 0) out of bevel
Press shafts (12) with ball bearings (13) out of bevel gears (1 1) and out of 900 miter housings
Support inner races of ball bearings (13) when pressing
shafts (1 2) out of them to prevent damaging bearings.
(10) Press shafts (12) from ball bearings (13).
Cleaning and Inspection.
Dry cleaning solvent P-D-680 is potentially dangerous.
Avoid repeated and prolonged breathing of vapors and
skin contact with the liquid. Do not use near open flame,
arcing equipment or other ignition sources. Always wear
eye protection and protective clothing. The flash point of
P-D-680 is 1 00 to 138 deg. F (38 to 59 deg. C).
Wash all components using dry cleaning solvent (item 3, Appendix E).
Clean and inspect ball bearings (1 3) as detailed in paragraph 4-9.
Death or serious injury could occur if compressed air is
directed against the skin. Do not use compressed air for
cleaning or drying unless the pressure is/has been
reduced to 30 psi (2.11 kg/cm2) or less. When working
with compressed air always use chip guards, eye protec-
tion and other personal protective equipment.
After washing, dry all components (except ball bearings) using compressed air.
Visually inspect threads of four screws (1), relief fitting (8), and grease fitting (9) for damage,
replace those with damaged threads.
Visually inspect tapped holes in both 900 miter housings (3) for damage. Chase threads of those
which are damaged; if this doesn't produce satisfactory results, replace housing(s).
Inspect splines of shafts (12) as detailed in paragraph 4-9.
Inspect bevel gears (11) as detailed in paragraph 4-9.