Operator's Manual
14
Operating
Figure 12
1. Front axle 2. Height gauge
3. Increase or decrease tire pressures to attain the
required height.
4. Repeat the procedure using the long end of the height
gauge on each rear wheel spindle (Fig. 13).
5. Regulate tire pressure as required.
Figure 13
1. Rear wheel spindle
2. Height gauge Regulate tire pressure as required.
OPERATING PROCEDURE
1. Make sure wire is installed on spark plug and fuel
valve is open.
2. Start the engine: refer to Starting/Stopping instruc-
tions.
3. Make sure coring head is in the up position.
4. Squeeze left interlock lever against handle.
5. Move shift lever to “L” (low) for Coring or “H”
(high) for Transport.
Note: If you encounter resistance during gear selec-
tion, jog the clutch handle until the gears align. Do
not shift gears while machine is moving. DO NOT
FORCE SHIFT LEVER AS DAMAGE WILL
OCCUR.
6. Move traction drive lever to engage position.
7. To engage and lower coring head, move coring head
lever to down position and hold until coring head is
completely lowered.
CHECK INTERLOCK SYSTEM
The safety interlock system’s purpose is to prevent the
engine from cranking or starting unless the traction drive
lever is disengaged and the coring head is raised. It also
interrupts engine operation if a handle-mounted interlock
lever is not activated when the coring head is lowered.
To check the interlock system:
1. Position the machine on a flat, open area. Start the
engine; refer to Starting and Stopping instructions.
2. Check the clutch switch (Fig. 14) with a continuity
tester or ohm meter and replace it if damaged. The
switch must be closed when the gear shift lever is in
a gear. The switch must open when shifting between
Neutral, First, and Second gears.
3. To adjust the switch, loosen the mounting screws and
reposition the switch as required.
4. If the coring head is in the raised position and the
engine will not start, or continues to run when the
coring head is down and the interlock lever(s)
released, there is a defect in the interlock system, pro-
ceed to step 5.
5. Check the coring head switch (Fig. 15) with a conti-
nuity tester or ohm meter and replace if damaged.
The switch plunger must be depressed when the cor-
ing head is in the raised position.