Exmark Viking Hydro Operator's Manual page 21

Squeezing the left hand and/or right hand lever causes the left hand and/or right
hand drive wheel respectively to slow down, stop, or reverse, depending on how
far each drive lever is "squeezed". Squeezing the drive levers beyond the
neutral position causes the drive wheels to engage in the reverse direction
regardless of the position of the neutral lock latches and the speed control lever.
4.1.5 Neutral Lock Latch: Located at the end of the handles. The purpose of these
latches is to allow the operator to lock the drive levers in a "neutral" position
where neither of the drive wheels are engaged in either a forward or reverse
direction. (See Figure 8).
Apply parking brakes whenever leaving the operators position.
DRIVE LEVER, NEUTRAL LOCK LATCH OPERATION
4.1.6 PTO Engagement: The "push/pull" PTO knob is located on the left side of the
control console. To engage the blades, the knob must be pulled toward the
operator until the turnbuckle (attached to the blade engagement idler) locks
over-center. To disengage the blades, push the knob down until the assist arm
contacts the pin on the deck.
Park brake must be disengaged before PTO is engaged or engine will kill.
4.1.7 Throttle-Choke-Kill Control (Kohler engines):
The throttle-choke-kill control lever is located on the control console right side.
Choke aids in starting a cold engine. The choke control is a part of the throttle
control and activates by moving the throttle control lever tot the full forward
position. You will notice a detent at the "full throttle" position (approximately
3/4" (2 cm) from top of slot) continue pushing forward into the "choke" position.
Once the engine has started, move the throttle control lever to the midway
point and allow the engine to warm-up before going to full throttle.
All Kohler engines are equipped with "throttle kill" as a standard feature.
Moving the throttle control lever to the full rear position will kill the engine. You
will notice the control lever will fall into a detent at the idle position, continuing
rearward past this detent will shut off the engine.
4.1.8 Throttle-Choke Control (15 HP Kawasaki engines with engine code FH451V-AS04):
(36" units – S/N 320,000-345,495; 48" units – S/N 320,000-346,716)
The throttle-choke control lever is located on the control console right side.
Choke aids in starting a cold engine. The choke control is a part of the throttle
control and activates by moving the throttle control lever to the full forward
position. You will notice a detent at the "full throttle" position (approximately
3/4" (2 cm) from top of slot) continue pushing forward into the "Choke" position.
Once the engine has started, move the throttle control lever to the midway
point and allow the engine to warm-up before going to full throttle.
FIGURE 8
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