Hale Q Series Muscle - Manual (Page 159)

159 MUSCLE (Midship) Pumps Installation, Operation, and Maintenance Manual
p/n: 029-0020-63-0
Gearbox Maintenance 
Input Shaft Disassembly
(See Figure 9-5: “Typical J Series Gearbox Assembly” on page 158.)
1. Remove the 1/2”-13 screw and washer.
2. Using an appropriate puller, remove the companion flange from the input shaft.
3. Remove the companion flange 0.375” x 1.563” (10 x 40 mm) key from the shaft.
4. Remove the oil seal from the companion flange end of the drive shaft, then
remove the bearing retaining ring.
5. Remove oil seal from other side of gearbox and remove the bearing retainer ring.
6. Using proper press, carefully press the input shaft from gearbox housing.
7. Remove the bearings and the input shaft 0.750” x 1.75” (19 x 44 mm) square key
from input shaft.
8. Note the orientation of gear, then through top of gearbox housing remove the
input gear from gearbox housing.
9. Using bearing puller, remove bearings from gearbox housing if necessary.
Assembly and Installation
(See Figure 9-5: “Typical J Series Gearbox Assembly” on page 158.)
Input Shaft Assembly
1. On the “non-drive” side of the gearbox housing, install the following (in order):
 A new spherical bearing.
 A new retaining ring.
2. On the “drive” side of the gearbox housing, install the following (in order):
 Input gear into gearbox housing in proper orientation. (See Figure 9-5: “Typi-
cal J Series Gearbox Assembly” on page 158.)
 3/4” x 1-3/4” (19 x 44 mm) square key in the input shaft.
 Holding the input gear in place, insert input shaft while aligning the shaft key to
the slot in the gear. Also, make sure the shaft aligns with the bearing.
 A new spherical roller bearing over the input shaft. Align the shaft and bearing
with the housing and carefully press bearing into place.
 A new retaining ring into gearbox housing.
3. Press new oil seals into both sides of gearbox housing.