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MTD 790 series User Manual

MTD 790 series
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Service
7
24
Service
7
24
Move the deck lift lever into the top notch on the right 7.
fender to raise the deck lift arms up and out of the way.
On 42” decks: 8. Remove the bow-tie cotter pin securing the deck
stabilizer rod to the deck. Slide the deck lift rod from the
mounting weldment on the deck as seen in Fig. 7-3.
On 46” Decks: Remove the bow-tie cotter pin and flat
washer securing the deck stabilizer rod to the deck. Slide
the deck lift rod from the mounting weldment on the deck
as seen in Fig. 7-3.
Cutting Deck Removal
NOTE: Models equipped with a 38-inch deck have one deck idler
pulley. Models equipped with a 42- and 46-inch deck have two
deck idler pulleys.
To remove the cutting deck, proceed as follows:
Place the PTO 1. (Blade Engage) lever in the disengaged (OFF)
position and engage the parking brake.
Lower the deck by moving the deck lift lever into the 2.
bottom notch on the right fender.
Remove the belt-keeper rod, from around the tractor’s 3.
engine pulley, by removing the self-tapping screw (A) that
secures it. See Fig. 7-1.
Note: Make a mental note what hole the other end of the belt-
keeper rod is inserted in for reinstallation purposes.
Remove the belt (C) from around the tractors engine 4.
pulley. See Fig. 7-1.
On 42” Decks: 5. Looking at the cutting deck from the left
side of the tractor, locate the bow-tie pin that secures the
deck support rod on the rear left side of the deck. See
upper half of Fig. 7-2. Remove the bow-tie pin that secures
the deck support rod, and carefully remove the deck
support from the deck lift arm.
On 46” Decks: Looking at the cutting deck from the left
side of the tractor, locate the deck release handle. See
lower half of Fig. 7-2. Pull the deck release handle and
carefully release the deck from the deck lift arm.
Repeat the above steps on the tractor’s right side.6.
: The deck support rod on the right side of the tractor is secured
using hair pin clip as opposed to a cotter pin, which you might
had noticed was used on the left side. This is normal and should
be reinstalled in the same manner as removed.
Figure 7-2
Figure 7-3
A
B
C
Figure 7-1
42” Deck
Bow-Tie Pin
46” Deck

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MTD 790 series Specifications

General IconGeneral
Engine Displacement190 cc
Drive SystemRear-wheel drive
Deck MaterialSteel
Starter TypeRecoil
Mulching CapabilityYes
Bagging CapabilityYes
Side Discharge CapabilityYes
Wheel Size8 inches (rear)

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