Printed in U.S.A. 4-16 918070/FP0811
Figure 4-11 Battery Location
503Z (Serial Numbers up to AH02282) Jump-Start
Procedure:
1. Turn ignition key to the “OFF” position.
2. Open the engine cover.
3. Connect one end of the cable to the positive (+) ter-
minal on the booster battery. Connect the other end
of the same cable to the positive (+) terminal on the
battery of the machine to be started.
4. Connect one end of the second cable to the nega-
tive (-) terminal on the booster battery. Connect the
other end of the same cable to the frame of the
machine to be started.
5. Start the engine. After the engine is running,
remove the cable connected to the frame first. Dis-
connect the other cable from the machine battery
positive (+) terminal.
6. Close the engine cover.
503Z (Serial Numbers AH00579 and up) and 603
(All Serial Numbers) Jump Start Procedure:
1. Ensure the battery disconnection switch is turned
to the “ON” position.
2. Turn ignition key to the “OFF” position.
3. Open the engine cover.
4. Slide the boot (7, Figure 4-12) down cable (6) to
expose terminal (3) on the battery disconnect
switch.
Note: Cable (6), connected to terminal (3) on the
battery disconnect switch, is also connected to the
positive (+) terminal on the starter.
When jump-starting from another machine,
be sure the second machine is not running
while using the unstarted machine’s glow
plugs. High voltage spikes from a running
machine can burn out the glow plugs.
1
2
3
Model 503Z -- Serial Numbers up to AH02282
Model 503Z -- Serial Numbers AJ02993 and up
Model 603 -- All Serial Numbers
Damage to the electrical system can occur
if:
• the engine is operated with the battery
cables disconnected,
• the battery cables are connected when
using a fast charger or when welding on
the machine (When welding on the
machine, remove both cables from the
battery and ground the welder to the
machine frame near the repair area), or
• battery booster cables are connected
incorrectly.
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