MK330D Charger Replacement Instructions
When replacing a charger you will receive the MK330D charger. This comes with everything you need. The in-line fuses on
the MK330D are different from the MK330; instead of cylinder fuses they are equipped with ATO style (automotive). In order
to run the charger battery leads through the holes on the frame (the inline fuse being larger than the hole), you will have to
follow these steps.
1. Open the cap and remove the fuse, do not put the cap
back on. Be sure not to rip the cap as it is attached to the
cable.
2. Feed one wire lead at a time (with the cap off the inline fuse block) through the hole.
3. After the wires and inline fuse block is through, caddy corner the
temperature switch block in order for it to pass through. You may
have to apply force, or you can trim off the corners of the block. If
you do decide you need to trim the corners only trim a very small
amount, if too much is removed it can cause damage to the
temperature switch.
4. Repeat steps 1 - 3 for the second and third battery charger lead.
5. After mounting the charger, routing the cables, and connecting the leads to the battery posts, then insert the 30 amp
fuses.
Note: The 3
rd
lead may already be prepped for feeding (corners trimmed
already). The chargers will be prepped for each order (if needed). In a
case where you receive a charger and the 3
rd
lead has not been prepped
call Gatekeeper Systems’ Tech Support at (888) 808-9433 before deciding
to shave the temperature switch yourself.