NHTSA ID Number: 11021051
Manufacturer Communication Number: MCD-012
TSB/Document Date: 2025-07-31
Summary
Instructions only ( no letter), on how to install a cover on the battery pack
box for 2021 and 2022 Cahabas. Instuctions emailed only.
Models Involved: 2021 & 2022 Cahaba, all floorplans.
Purpose: To provide instructions to install a cover on the battery pack
box
Tools
Drill
Impact driver
Forklift
9/16 Wrench
9/16 Socket
Phillips head bit
10,000 motorhome lifts
Phillips head screwdriver
Parts
5163364, battery pack
cover (figure 1)
Spray foam
2 of 5110416, heat pads
14 Self-tapping screws, ¾ inch
Alcohol wipes
Figure 1, part 5163364, will be in 4 parts
Note: Certain steps require 2 people
Repair instructions
1. Disconnect all power from the 30-amp shore cord.
2. Make sure the Volta main system power button, located on shower wall behind driver’s seat, is pushed into the
“off” position.
3. Using the lifts, raise the coach to a safe working height.
4. Locate the service key switch on the Volta main battery pack
and turn it to the “off” position.
5. Remove the 2 heat pads from the Volta battery pack
. See figure 2.
Figure 2
6. Using a small Philips head screwdriver remove the plastic covers over the terminals.
7. Remove the small bolts holding the terminals in place. See figure 3.
Figure 3
8. Put the forklift in place directly under the frame for the battery pack
. See figure 4.
Figure 4
Page 2 of 6
9. Using a 9/16 wrench and socket with an impact drill, remove the nuts and bolts holding the battery pack
frame in
place. See Figure 4. Remove the 8 bolts circled in yellow to remove the frame of the battery pack
from the
motorhome. DO NOT REMOVE THE 4 BOLTS CIRCLED IN RED. See figure 5A & 5B.
Figure 5A
Figure 5B
10. After removing the bolts, lower the battery pack
out of place. The battery pack
must be lowered in increments to
clear the frame of the motorhome.
11. Raise the battery pack
box cover in place to check for a proper fit.
12. Route all wires through the opening in the side of the box.
13. Route wires for the new heat pads into the opening in the floor and reconnect them. See figure 6A & 6B.
Figure 6A
Figure 6B
Page 3 of 6
14. Using the forklift, bring the Volta battery pack
back into place. Figure 7.
Figure 7
15. Bolt the bottom of the frame to the motorhome by reinstalling the 9/16 bolts that were removed in step 9. See
figure 8.
Figure 8
16. Using alcohol wipes clean the area where the new heat pads will be installed on the bottom of the battery pack
.
17. Remove the backing from the heat pads and place them on the battery pack
box.
Page 4 of 6
18. Reattach the terminals to the front of the battery pack
. See figure 9.
Figure 9
19. Using self-tapping screws attach the bottom of the enclosure to the top as shown below in figure 10.
Figure 10
Page 5 of 6
20. Attach the front and the inspection panel with self-tapping screws. See figures 11A & 11B.
Figure 11A
Figure 11B
21. After completion use expandable spray foam to seal and openings and metal clamps to tie back any loose wires.
See figure 12.
Figure 12
Page 6 of 6
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- High density negative paste, improves performance and...
- Enhanced life alloy or Silver Calcium stamped alloy...
- Calcium Lead positive grid, maximizes conductivity and...
- Robust Envelope Separator with puncture-resistant back...
- Vent cap design that resists acid leakage
Last update on 2026-05-30 / Affiliate links / Images from Amazon Product Advertising API
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TSB/Document ID: MCD-012
Replacement Service Bulletin Number:
MFR Communication Date: 2025-07-12
MFR Internal Campaign ID/Software Version: MCD-012
Communication Type: Other
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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