Exmark Viking Hydro Operator's Manual page 17

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3.11
3.12
3.13
3.14
3.15
Connect the PTO engagement linkage to the bell crank on the font, left hand side
of the engine deck. Insert rod through the hole from the outside and fasten with
hairpin cotter from bolt bag.
PTO ENGAGEMENT LINKAGE
Install the speed control rod assembly (linkage with the yoke installed on one end)
into the end of the speed control lever located underneath the center of the
console. Insert the end of the linkage (opposite the yoke) into the end of the
speed control lever from the right hand side and fasten with a hairpin from the bolt
bag (See Figure 3).
Connect the lower end of the speed control linkage to the speed control crank
located at the top rear of the fuel tank support. Secure with clevis pin and hairpin
from the bolt bag.
Note the square swivel at the end of the hydro control arm linkage. Place the stud
end of the swivel into the hole on the end of the short crank arm located at the end
of the speed control crank (top, rear of fuel tank support).
Install a 5/16" SAE washer and fasten with a 3/32" x 1/2" cotter pin from bolt bag.
Repeat on opposite side of unit (See Figure 4).
Install drive lever linkages:
Refer to figure 4. Position speed control lever in neutral. Position drive levers in
neutral and engage the neutral lock latches (See Figure 7(b)). Drive lever linkages
are shipped with upper ball joints installed. Thread a 3/8-24 LH jam nut, from the
bolt bag, onto the lower end of each drive lever linkage. Identify the lower ball
joints installed on hydro control arm weldments. Thread lower end of each drive
lever linkage into the lower ball joint until hole in upper ball joint aligns with hole in
drive lever. Install 5/16-18 x 1 3/4 hex cap screws and 5/8-18 nyloc nuts from the
bolt bag and tighten. This will give an approximate setting for drive lever linkages;
you will need to refer to Section 5.2.10 step d to complete the drive lever linkage
adjustment.
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FIGURE 3
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