Exmark 312 Lawn Mower User Manual


 
Specications
Accessory Weight Table Worksheet:
Use the table below to determine if extra weight
is required for the unit. Identify the accessories
and correct deck size and place the corresponding
values in the Accessory Score column. If the Total
Accessory Score meets the following, add the
recommended weight kit.
Note: The 72 inch deck does not require a weight kit.
48 inch
Deck
52 inch
Deck
60 inch
Deck
Accessory
Score
Light Kit
2
3
2
Michigan
Seat/CRSS
11 12
3
Bagger
0 0 3
Pneumatic
Caster Tires
6
8
5
Mulch Kit
-3 -4 -5
Striper Kit
-2
0 0
OCD02 -5
-7
-4
Hitch Kit
1 2 1
Sunshade
Kit
2
3
2
Total Accessory Score
Total Accessory Score Required Weight Kit(s)
0 9
None required
10 19
*116-1173 Under toe board
mount weight kit
20 and Higher *Two 116-1173 Under toe
board mount weight kits or
one 116-1173 Under toe
board mount weight kit
and one 116-1238 Front
toe board mount weight kit
*48 and 52 inch units that come with an under toe
board weight as standard, can add an additional toe
board weight for primary accessory weighting (scores
10-19); and front toe board weight kit for secondary
accessory weighting (scores 20 and higher). Other
units should install a rst under toe board kit for
primary accessory weighting (scores 10-19); and a
second under toe board kit for secondary accessory
weighting (scores 20 and higher).
Torque Requirements
Bolt Location
Torque
Blade Drive Sheave
Mounting Nut
130–160 ft-lb (176-217
N-m)
Blade Mounting Bolt
(lubricate with anti-seize)
50-60 ft-lb (68-81 N-m)
Anti-Scalp Roller Nyloc
Nut See Figure 18
30-35 ft-lb (41-47 N-m)
Anti-Scalp Roller Whizlock
Nut See Figure 18
30-35 ft-lb (41-47 N-m)
Engine Mounting Bolts
(Kohler 680 & 740)
(Kawasaki 651 & 691)
(Kohler EFI)
(Kawasaki 801)
27-33 ft-lb (37-45 N-m)
17-23 ft-lb (23-31 N-m)
27-33 ft-lb (37-45 N-m)
27-33 ft-lb (37-45 N-m)
Wheel Lug Nuts
90-95 ft-lb (122-129 N-m)
Wheel Motor Mounting
Bolts
72-77 ft-lb (98-104 N-m)
Wheel Hub Slotted Nut 211-260 ft-lb
(286-352 N-m)
Rollover Protection
System (Roll Bar) 1/2
inch Mounting Bolts
75-80 ft-lb (102-108 N-m)
Clutch Retaining Bolt
(secured with threadlocker)
55-60 ft-lb (75-81 N-m)
Hydro Park Brake
Cable Anchor 1/2 inch
Mounting Bolt (secured
with threadlocker)
67-89 ft-lb (91-121 N-m)
20