Glow Plugs; Booster Batteries; Battery Care; Pto Care - Northern Lights OM844W3 Operator's Manual

2. Do NOT reverse the polarity of battery cables when
installing the battery.
3. If welding on the unit, disconnect the regulator and bat-
tery. Isolate the leads.
4. Disconnect the battery cables when servicing the D.C.
alternator.
5. Never test with a screwdriver, etc., against any
terminal to see if it emits sparks.
6. Do not polarize the alternator or regulator.
7. A D.C. circuit breaker protects your control panel and
wiring harness. It is located in the side of the generator
junction box.GLOW PLUGS
1. Each cylinder is supplied with a glow plug which
serves to heat the combustion chamber.
2. To check the glow plugs, loosen the current
carrying flat wire between the plus-poles of the

glow plugs (

). Connect a D.C. test bulb
Figure 19
between the plus-pole of the battery and the
plus-pole of the glow plug. If the bulb lights up,
the glow plug is functioning properly.
3. Check all glow plugs and replace any faulty ones.
Figure 19: Glow plugs.

BOOSTER BATTERIES

CAUTION: Battery gas can explode.
Keep all flames and sparks away from batteries.
1. Before changing or using booster batteries, check battery
electrolyte level. Add distilled water if necessary.
2. Booster and main batteries must have the same voltage
rating.
3. First, connect positive (+) terminal of booster battery
to positive (+) terminal of main battery. Then, connect
negative (-) terminal of booster battery to ground on
the engine block (
see Figure 20
4. Remove booster battery after starting engine.
revised 11-8-13
Servicing
).
OM844W3 11/13
25
5. Sealed batteries: See manufacturer charging and
booster instructions.
Figure 20:
Battery connections.
SP 18-19. BATTERY CARE
1. Check electrolyte level every 50 hours or once per
month. Add distilled water to manufacturer's
recommended level.
2. Batteries, cables and cable terminals should
be checked and cleaned every 100 hours.
Clean corrosion with a water and baking soda
solution. Flush with clean water. Tighten terminals
and grease them to inhibit corrosion.
3. Check the battery condition with a hydrometer every
250 hours.
SP20. P.T.O.
1. The electric clutch P.T.O. does not have any
scheduled maintenance points. However, the
equipment the P.T.O. powers may require
maintenance. Consult the manufacturer of the
driven equipment.
SP21. WINTERIZING / OUT-OF-SERVICE
1. Marine sets:
a. Drain fresh water and seawater cooling systems
completely. Remember to shut off seacocks
before opening drain cocks.
b. Drain water supply lines and wet exhaust line.
c. Loosen the seawater pump cover and drain pump.
d. Change the crankcase oil and filter.
e. Loosen the alternator belt.
f. Disconnect and clean battery. Remove to warm
storage place if possible.
g. Clean outside of unit. Paint any scratched or
chipped surfaces. Put corrosion preventative on
all exposed metal surfaces.