Page: 4-28
WALKER MANUFACTURING COMPANY
July 2006
SERVICE INSTRUCTIONS
Blade Drive Gearbox TIming
8. Reinstall the four (4) bolts mounting the gearbox to
the connector tube but do not tighten them at this
time; leave connector tube bolts finger-tight.
9. Position the gear drive assembly on the deck and
install the 3/8-16 bolts mounting the entire assem-
bly. Leave the mount bolts finger-tight.
10. Torque all the connector tube bolts to 90 in-lb
(9 N
ā
m) for aluminum gearboxes or 115 in-lb
(34.7 N
ā
m) for cast iron gearboxes.
NOTE: This fastener tightening sequence aligns
the gearbox assembly with the deck housing and
eliminates the possibility of mounting the unitized
assembly in a bind.
11. Tighten 3/8-16 mounting bolts.
12. Fill gearbox assembly with oil. Refer to Mower
Deck Gearbox Lubrication in the Lubrication
Section for instructions.
13. Reassemble remaining items onto deck to com-
plete installation. After installing blades, check that
the blade timing is correct by moving the blades
through one (1) complete revolution. Make sure
blade tips pass clear of each other.
Mower Deck Gearboxes
(Shown with Gearbox Cover Removed for Clarity)
GHS Blower Assembly (and/or Blower Wheel) -
Model MS, MC, MD, MT
GHS Blower Assembly Removal - Model MC, MD, MT,
MTL
1. Remove the mower deck. Refer to Deck Installa-
tion in the Set-Up Section and reverse the proce-
dure to remove the deck.
Remove Skid Bar for
GHS Blower Removal
2. Remove the blower faceplate by removing six (6)
1/4-20 nuts.
3. Remove the GHS blower drive belt. Refer to RE-
PLACING/REPAIRING the Drive Belts in this sec-
tion for instructions.
Align Flats
90Ā° Apart
Coupler
Connector Tubes
Mower Deck
Gearboxes
Skid Bar
Skid Bar Mounting Bolts
Blower Assembly
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