Forward / Reverse Speed; Mower Limit Switch - Jacobsen 67862 Parts & Maintenance Manual

3 ADJUSTMENTS
3.6

FORWARD / REVERSE SPEED ______________________________________________

Forward and reverse speeds are adjusted at the traction
pedal. Set forward speed before adjusting reverse.
To adjust forward speed:
1. Make sure drive pump has been set to neutral and
engine throttle is adjusted correctly.
2. Start engine and check forward travel speed with
engine at full throttle and tractor in two wheel drive
(2WD). Forward transport speed should measure 15
mph (24 kph)
3. Stop engine. To adjust speed, disconnect eye bolt (K)
from pedal and loosen jam nut (J). Turn eye bolt in to
reduce speed, out to increase speed. Tighten jam nut
to hold adjustment in place and connect eye bolt.
4. With traction pedal in neutral, check position of neutral
switch (I) . Adjust switch up or down so pointer (M) on
traction pedal bracket is centered over it. When
adjusted correctly lamp 5 on controller will light when
ignition switch is turned to on.
5. Start engine and check speed. Repeat procedure until
15 mph (19 kph) forward transport speed is attained.
To adjust reverse speed:
1. Set forward speed.
3.7

MOWER LIMIT SWITCH_____________________________________________________

The left and right wing lift arms are equipped with proximity
switches which signal the controller to turn off the
mowers.The switches are mounted to the tractor frame
directly behind or in front of the lift arms. If mowers continue
to run when lifted, or do not run when lowered inspect
switch. Adjust or replace switch as needed.
To adjust switch:
1. Park tractor on a flat, level surface.
2. Remove wing mowers from lift arm.
3. Turn ignition key to the RUN position to activate
controller. Do not start engine.
4. Raise lift arm manually approximately 10 in. (250 mm)
and support with a block..
5. With lift arm supported, loosen hardware (P) and
adjust switch bracket
corresponding lamp on controller goes out (#16 for
L.H, #19 for R.H.). Tighten Hardware (P).
6. Repeat procedure for lift arm on opposite side.
7. Assemble mowers to lift arms
10
(Q) up or down, until
2. Start engine and check reverse travel speed with
engine at full throttle. Reverse speed should measure
5-6 mph (8-9 kph)
3. Stop engine. To adjust speed, loosen nut on reverse
travel stop bolt (L). Slide bolt forward in slotted hole to
increase speed, back to reduce speed. Tighten nut to
hold adjustment in place.
4. Start engine and check speed. Repeat procedure until
5-6 mph (8-9 kph) reverse speed is attained.
J K
8. Start engine and turn mower switch to mow.
9. Lift and lower the wing mowers, checking that mowers
shut off when raised and turn on when lowered.
Note: The proximity switches set the point where the
wing mowers turn off, not how high they will raise.
Q
P
I
M
L
Figure 3E
Q
P
Figure 3F
LF011