d. Install the horizontal reversing shaft assembly
e. Install the independent boom hoist shaft
619.
Crane Rotating Frame Base Assembly
assembly (para. 600).
Cleaning, Inspection, and Repair
a. Cleaning. Clean the crane rotating frame base
with live steam.
b. Inspection and Repair.
Inspect the crane
rotating frame base for excessive wear or damage.
Replace or repair a damaged or defective rotating frame
base assembly.
l. Install and connect all lines and wiring.
620.
Crane Rotating Frame Base Assembly
Installation
m. Install the operator's controls.
o. Install the front and rear roller assemblies (para.
c. Install the vertical reversing shaft assembly
Section LXXXII. ROTATING FRAME RING GEAR
621.
General
A dual flanged center, hub-type ring gear, is
bolted to the carrier frame and serves as the swing or
tracking gear in which the crane assembly rotating gear
and rollers operate.
622.
Rotating Frame Ring Gear Removal
b. Remove the crane rotating frame base
assembly (para. 618).
c. Remove the rotating frame ring gear as
instructed on figure 290.
Figure 290. Rotating frame ring gear, removal and
installation.
623.
Rotating Frame Ring
Gear
Cleaning,
Inspection and Repair
624.
Rotating Frame Ring Gear Installation
a. Cleaning. Clean all parts with an approved
a. Install the rotating frame ring gear assembly as
cleaning solvent and dry thoroughly.
illustrated on figure 290.
b. Inspection and Repair. Inspect all parts for
b. Install the crane rotating frame base assembly
excessive wear and damage. Replace or repair all
defective parts.
AGO 6819A
321
