Step 3.
Holding the bear ing hous ing in the same po si tion, with draw the drive shaft from the as sem -
bly.
Step 4.
Turn the bear ing hous ing over and drop the bear ings and the spacer into your other hand. Do
NOT let the bear ings fall onto the floor or a work sur face, as they are eas ily dam aged.
In most cases, it will not be nec es sary to re move the drive gear from the drive shaft. How ever, do ing so is sim -
ply a mat ter of loos en ing the two set screws that se cure the gear to the shaft and then work ing the gear off of
the shaft. If yours is a bot tom-drive source, there will be no Wood ruff key, In stead, the gear will be se cured to
the shaft with a roll pin. In the case of side-drive unit, the gear is held in place on the shaft by a wood ruff key.
Sup porting the bot tom of the gear hub, drive out the shaft us ing a ham mer and a small di am e ter drift. When
hammering the drift en sure that the wood ruff key does not rotate in its seat and jam in the keyway.
RE AS SEM BLY NOTE
Fol low the steps de scribed be low and re fer to Fig ure 5-21 when re as sem bling the drive shaft as sem bly.
(a) Re at tach the drive gear to the drive shaft, if you have dis as sem bled these parts.
(b) Put the two bear ings and the spacer in place in side the drive-bear ing hous ing.
(c) In sert the drive shaft into the as sem bly.
(d) Re place the re tain ing ring that se cures the drive shaft. To do so, place the points of the re tain ing ring
against the groove in the drive shaft. Then squeeze the ring against the shaft with a pair of nee -
dle-nosed pli ers un til the ring snaps into place around the shaft. Make sure the re tain ing ring is prop -
erly seated in its groove in the drive shaft.
The fol low ing ap plies to Bot tom-drive source:
(e) In sert the drive shaft as sem ble through the hole of the base plate so that the pin ion gear meshes with
the ring gear.
(f) Loosely tighten the three mount ing screws.
(g) Gently ro tate the cru ci ble mount ing flange and check for proper mesh ing of the pin ion gear.
(h) Firmly tighten the three mount ing screws of the drive shaft as sem bly.
The fol low ing ap plies to side-drive source:
(e) Slightly loosen the two set-screws that are hold ing the gear onto the drive shaft.
(f) In sert the drive shaft as sem bly through the side hole of the source as sem bly so that the bevel pin ion
meshes with the ring gear.
(g) Tighten the three mount ing screws
(h) Ad just the po si tion of the bevel pin ion the drive shaft so that the pin ion meshes with the ring gear
prop erly. Check the as sem bly by ro tat ing the cru ci ble mount ing flange.
(i) Tighten the two set screws on the bevel pin ion.
Source Disassembly
5-23
0101-9004-0A
STIH-270-2PT
