OPTIMAX
BLOWER
Location
Housing to engine face
Deck to housing
Engine to deck
Lower handle to deck
Upper handle to lower
handle
Thrrotle to handle
Interior deflector to hook
Fan to Crankshaft
(8HP LB800)
Fan to Crankshaft
(9HP LB900)
Front panel to housing
(short stud)
Intake guard clamp
(long stud)
Wheel bracket to
housing
Front wheel axle bolt
Description
BLT-W LF 5/16-24 x 3/4
NUT 5/16-18
BLT 5/16-18 X 1-1/2
BLT 5/16-18 X 1-3/4
BLT 5/16-18 X 1-3/4
BLT 1/4-20 X 1-3/4
BLT-W LF 10-32 X 5/8
BLT 3/8-24 X 1-3/4 GR8
BLT 7/16-20 X 1-3/4 GR8
NUT 5/16-18
NUT-NYLOC 5/16-18
NUT-FL 5/16-18
BLT 3/8-16 X 5-1/2 GR5
TORQUE SPECIFICATIONS
Min. Torque
P/N
Ft-lbs (In-lbs)
22 (264)
910503
64141-6
16 (192)
64123-69
19 (228)
64123-61
19 (228)
64123-61
19 (228)
90-0414
4 (48)
64139-26
(52)
64123-127
30
64123-253
50
64141-6
16 (192)
64229-02
64141-6
16 (192)
64123-253
34
EN
Max. Torque
Ft-lbs (In-lbs)
28 (336)
22 (276)
25 (300)
25 (300)
25 (300)
6 (72)
(71)
50
90
22 (276)
8 (100)
22 (276)
45
11