ELECTRICAL
4262930-Rev A 4-45
4
Battery Pack Test
IMPORTANT
• Battery pack must be fully charged before
beginning test.
• Be sure machine is securely parked on
kickstand.
• Be sure to back the bedknife away from reel
before beginning test.
• During testing, the total amperage draw should
be 6.5 ± 0.5 amps.
1. Park the mower safely.
(See “Park Mower Safely” on page 1-5.)
2. Back the bedknife away from reel.
(See “Bedknife-to-Reel Adjustment” on page 8-14.)
3. Open battery pack cover. (See “Battery Pack” on
page 4-56.)
!
WARNING
4. Move the key switch to the start/on position.
5. Engage the mow switch, increase the machine
speed, and engage the Operator Presence Control
(OPC) bail lever.
Operate the machine at full speed until system
voltage decreases to approximately 42 VDC.
When system voltage reaches 42 VDC, the reel
motor will be disengaged by the control module.
6. Using a multimeter, with the traction motor still
engaged, check the battery voltage level of each
battery.
Battery voltage will vary slightly from one battery to
the next.
The average voltage reading should not vary more
than 1.5 VDC from the highest measurement.
7. Disengage the OPC bail lever, move the key switch
to the off position, and disconnect the battery pack
connector.
Do all batteries test within 1.5 VDC of the highest
reading?
YES Batteries are good.
NO Battery is faulty; replace the battery.
8. Install the battery pack cover.
(See “Battery Pack” on page 4-56.)
9. Adjust bedknife-to-reel contact.
(See “Bedknife-to-Reel Adjustment” on page 8-14.)
Required Tools or Equipment
Digital Multimeter
• Conduct battery test in a secured
environment.
• Be sure the area is clear of all bystanders.
• Do not leave the machine unattended during
the test procedure.
• Clear the test area of all tools and debris.
• Failure to follow safety guidelines could
result in death or serious injury.
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