2-2 Assembling gear case
1. Place washer (A) 900600-00012 around clip (B),
then insert drive gear assembly using tool (C)
897714-06031 until it bottoms. Remove washer (A)
after drive gear assembly is installed.
2. Install retaining ring to the groove of gear case
bore.
3. Insert key (D) in the keyway on worm wheel
shaft.
4. Hold the worm wheel and heat it up with heater,
then insert shaft to worm wheel aligning key(D) to
the key way (E) on the worm wheel.
5. Tap end of worm wheel shaft by plastic mallet till
worm wheel is centered on the shaft.
6. Place ball bearing (F) on spacer (G) of bearing
tool 897701-14732 and install ball bearing onto
worm wheel shaft as shown.
7. Install retaining rings and oil seals to shaft.
8. Place the bearing ball (H) in roller bearing (I)
and install worm gear into upper gear case.
9. Place shaft assembly into upper gear case half
making sure to locate retaining rings in the slots (J)
on gear case.
10.Fill gear case with about 80 g (3 oz) of lithium
based grease or ECHO LUBE
TM
. Apply liquid
gasket (Loctite #515 or equivalent) to mating
surface of gear case.
11. Tighten gear case by five screws.
PAS attachments
SERVICE HINT
7
(C)
(D)
(E
(F)
(G)
(H)
(I)
(J)
(A)
(B)
Before heating gear, put on heavy gloves to
protect you from burning.
WARNING
DANGER
