Perkins 400 Series Operation And Maintenance Manual page 57

SEBU7992-05
2. Move the alternator in order to increase or
decrease the belt tension.
3. Tighten the adjusting bolt (1). Tighten the mounting
bolts (2). Refer to the Specifications Manual for
the correct torque settings.
Alternator and Fan Belts -
Replace
Illustration 32
Typical example
(1) Adjusting bolt
(2) Mounting bolts
For applications that require multiple drive belts,
replace the belts in matched sets. Replacing only one
belt of a matched set will cause the new belt to carry
more load because the older belt is stretched. The
additional load on the new belt could cause the new
belt to break.
Note: When new belts are installed, check the belt
tension again after 20 hours of engine operation.
Refer to the Disassembly and Assembly Manual for
the installation procedure and the removal procedure
for the belt.
Battery - Replace
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Batteries give off combustible gases which can
explode. A spark can cause the combustible
gases to ignite. This can result in severe personal
injury or death.
Ensure proper ventilation for batteries that are in
an enclosure. Follow the proper procedures in or-
der to help prevent electrical arcs and/or sparks
near batteries. Do not smoke when batteries are
serviced.
The battery cables or the batteries should not be
removed with the battery cover in place. The bat-
tery cover should be removed before any servic-
ing is attempted.
Removing the battery cables or the batteries with
the cover in place may cause a battery explosion
resulting in personal injury.
1. Switch the engine to the OFF position. Remove all
electrical loads.
2. Turn off any battery chargers. Disconnect any
battery chargers.
3. The NEGATIVE "-" cable connects the NEGATIVE
g01091158
"-" battery terminal to the NEGATIVE "-" terminal
on the starting motor. Disconnect the cable from
the NEGATIVE "-" battery terminal.
4. The POSITIVE "+" cable connects the POSITIVE
"+" battery terminal to the POSITIVE "+" terminal
on the starting motor. Disconnect the cable from
the POSITIVE "+" battery terminal.
Note: Always recycle a battery. Never discard a
battery. Dispose of used batteries to an appropriate
recycling facility.
5. Remove the used battery.
6. Install the new battery.
Note: Before the cables are connected, ensure that
the engine start switch is OFF.
7. Connect the cable from the starting motor to the
POSITIVE "+" battery terminal.
8. Connect the NEGATIVE "-" cable to the
NEGATIVE "-" battery terminal.
Maintenance Section
Alternator and Fan Belts - Replace
57
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