Operation; Daily Inspection; Operator Back-Up System - Jacobsen Sand Scorpion Safety And Operation Manual

4

OPERATION

4 OPERATION

4.1 DAILY INSPECTION ________________________________________________________

Perform daily inspection at the start of each work day
before operating tractor.
CAUTION:
Before inspecting tractor, discon-
!
nect battery charger and battery connector from
machine. Engage parking brake, and make sure
power is off.

4.2 OPERATOR BACK-UP SYSTEM ______________________________________________

1. The operator back-up system prevents the tractor
from starting unless the parking brake is engaged,
and the operator is sitting in the seat.
The system will also disconnect power to the tractor
when the operator leaves the seat for any reason.
!
WARNING
Never operate equipment with the operator back-
up system disconnected or malfunctioning. Do not
disconnect or bypass any switch.
2. Perform each of the following tests to insure the
operator back-up system is functioning properly.
Refer to the chart below for each test and follow the
check ( ) marks across the chart.
Test 1: Represents normal starting procedure. With
the operator seated and parking brake engaged the
power should come on.
Operator Seated
Test
1
2
3
4
GB-12
!
Operator's Back-up System Check
Parking Brake
Yes No Engaged
1. Perform a visual inspection of the entire unit, look for
signs of wear, loose hardware, and missing or dam-
aged components.
2. Check level of electrolyte in batteries and make sure
all battery connections are tight and clean.
3. Make sure the machine is lubricated and the tires
properly inflated.
4. Test the operator back-up (power interlock) system.
Test 2: If starting is attempted with the parking brake
disengaged, power should remain OFF and tractor
should not operate.
Test 3: Start the tractor in the normal manner. With
the parking brake engaged, lift your weight off
seat.The tractor should lose power.
Test 4: Repeat Step 3 but disengage parking brake
before lifting your weight off seat. The tractor should
lose power.
Stop the test and have the system inspected and
repaired if:
Power remains off during test 1; or
Power comes on during test 2; or
Power remains on during test 3 or 4.
Disengaged Comes On
Power
Remains Off Goes Off