4. Reinstall acorn nut and o-ring, then recheck the
switches for worn, cracked, broken or frayed in-
u n l o a d i n g pressure to be certain pressure set-
sulation and loose terminal connections. Check for
t i n g was not disturbed while installing acorn
frayed or corroded external ground straps and
nut and o-ring.
corrosion on battery terminal ports.
5. Shut down engine, remove gauges and detach
W h e r e inspection reveals dirt, looseness or
d a m a g e ; clean, tighten and adjust or replace as
necessary depending on existing conditions.
Adjust Boom and Bucket Control Levers: The
control levers' are properly set at the factory. An
Note: Maintenance personnel must observe the
adjustment is provided by clevises connected di-
following precautions to prevent the possibility of
r e c t l y to the levers to permit changing angle of
s e r i o u s injury or excessive damage to electrical
levers if desired and to insure that spools shift into
system components when servicing the "Delcotron"
With engine shut down, and bucket on the
1. WHEN INSTALLING BATTERIES, MAKE SURE BAT-
ground, place levers in HOLD (neutral) position.
TERIES AND "DELCOTRON" POLARITIES ARE THE
The adjustment can be made as follows : See Fig-
When installing a battery, always make abso-
lutely sure the ground polarity of the battery and
1. Loosen locknut (Item 1 Figure 36) on control
t h e ground polarity of the "Delcotron" are the
s a m e , If a battery of the wrong polarity is con-
2 . Remove cotter and clevis pin (Item 2 Figure
nected into the charging system or if a battery is
reversed when installing it, the battery is directly
shorted through the diodes. Consequently the di-
3. Turn clevis clockwise to move lever toward the
odes and machine wiring are endangered by high
rear; counter-clockwise to move lever forward.
c u r r e n t flow. Burned wiring harness and burned
"open" diodes probably will result.
4. When lever is set where desired, attach clevis
with pin and cotter and tighten locknut securely.
2. BOOSTER BATTERIES MUST BE PARALLELED-
5. Check that levers shift into all positions with-
When connecting a booster or "slave" battery,
m a k e certain to connect the negative terminals
together and the positive terminals together. Fail-
Clean and Tighten Electrical Connections:
ure to observe this precaution will result in the
Periodically inspect and check all wiring and con-
same damage as described above.
nections on electrical components such as the
b a t t e r i e s , cranking motor, voltage regulator, al-
3. BATTERY CHARGER AND BATTERY POLARITIES
When connecting a charger to the battery, con-
nect the charger positive lead to the battery posi-
tive terminal and the charger negative lead to the
b a t t e r y negative terminal. Failure to follow this
procedure will result in the same damage as de-
scribed in the first caution.
4. NEVER OPERATE "DELCOTRON" ON OPEN CIRCUIT-
Never operate the "Delcotron" on open circuit.
With no battery or electric load in the circuit (open
circuit), the "Delcotron" can build up high volt-
ages which could be extremely dangerous to any-
one who might accidentally touch the "Delcotron"
battery terminal. Before making tests or "on the
m a c h i n e " checks, it is prudent to make sure all
connections in the circuit are tight and secure.
Fig. 36. Adjust Boom and Bucket Control Levers