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NATIONAL 68" SR & DL TRIPLEX – CE
®
11
WING MOWERS
1. Remove Wing Mower Belts (17, Fig. B) from the steer-
ing column.
2. Unlock Hooks (18, Fig. B) from Wing Mower Assem-
blies (19, Fig. B), lower them carefully to the ground.
Slip wing mower belts over Countershaft Pulleys (20,
Fig. B).
3. Block mower wheels to prevent mower from moving
forward. Pull Wing Mower Assemblies (19, Fig. B)
forward so that they slide on Pull Rods (21, Fig. B) and
compress springs. This will allow enough slack to
enable belts to be installed over Reel Pulleys (22, Fig. B).
ENGINE
MOWER IS SHIPPED WITH DRY ENGINE. DO
NOT START ENGINE UNTIL OIL IS ADDED TO
CRANKCASE. See Engine Manual for additional
information.
DIFFERENTIAL
Grease has been installed in the differential at the
factory. Refer to the Maintenance Section, page 7, for
additional information.
ASSEMBLY INSTRUCTIONS
REAR MOWER
1. Remove two 1/2" x 1-1/2" Hex Head Bolts (1, Fig. B)
and nuts from the shipping position in the Seat Hinge
assembly (2, Fig. B). Position Seat Hinge Assembly
with pivot facing rearward, over the seat mount of the
mower frame and fasten with Bolts (1, Fig. B) and lock
nuts.
2. Pivot Seat Brace (3, Fig. B) from the axle so that the
top end aligns with the tab at the back of the seat
hinge assembly. Fasten with a 5/16" x 1" Hex Head
Bolt, Lock Washer and Hex Nut.
3. Remove the Lifter Tee (4, Fig. B) from the shipping
position in the Pivot Tube (5, Fig. B) and set aside
cotter pin and washer for later use. Insert the rod end
of lifter tee through the slotted hole in the pad on the
rear mower frame and secure with the cotter pin and
washer as shown.
4. Fasten Rear Mower Pull Rod (6, Fig. B) inner leg by
removing Bolts (7, Fig. B) and reinserting it through
pull rod and attaching flanges on tractor axle. Note
that Spacers (8, Fig. B) must be in each pivot point to
allow free movement of the pull rod.
5. Attach Pull Rod (6, Fig. B) to Pivot Tube (9, Fig. B) with
Pin (3, Fig. K on page 17) and Spacers (1, Fig. K).
NOTE: Before completing assembly, it will be neces-
sary to refer to the rear Mower Drive Belt Tension
section and Figure K, page 17 for adjusting belt
tension.
6. Install Rear Mower Belt (10, Fig. B) from Countershaft
Pulley (11, Fig. B) to outer Drive Pulley (12, Fig. B).
Idler Pulley (13, Fig. B) must ride on top of lower belt
to provide proper tension. NOTE: It will be necessary
to raise rear mower to allow enough slack to get belt
over pulleys.
SEAT
1. Fasten Seat (15, Fig. B) to seat mounts by threading
four 5/16" x 1" Hex Bolts (16, Fig. B), through 5/16"
lockwashers, through holes in seat mounts and into
the threaded holes in the bottom of the seat.