John Deere OMM141979 J9 - Manual (Page 24)

Service - 20
SERVICE
7. Remove secondary belt (K) from tiller drive sheave.
Install Secondary Drive Belt
1. Install new secondary drive belt with one twist (A), as
shown, to seat “V” of belt in secondary drive sheave (B).
DO NOT cross-over belt (forming an “X” pattern) when
installing or tiller drive rotation will be reversed.
2. Move to left rear of tiller—install V-idler (B) inside belt
and fasten with mounting bolt (C), outside-in, and tighten
with lock nut (D) on inside of frame.
3. Turn bolt (E) counterclockwise to move tensioning idler
(F) as far down in slot as necessary to tension belt
properly—until inside-edge of front gauge rod (G) has
3 mm (1/8 in.) clearance from vertical frame rail (H).
4. Tighten tensioning idler nut (I).
5. Install shield (J) and fasten with two self tapping cap
screws (K) until snug—DO NOT over-tighten or you may
damage threads in shield holes.
Replacing Tines
1. Park machine safely.
K
M96305
M41766
A
B
M41764
B
C
D
c
CAUTION: Avoid injury! DO NOT work under a
raised tiller unless it is safely supported. Tiller
could fall on you, causing serious injury.
E
I
J
K
F
M96300
C
H
M41784