Examine branches that are loosely hanging off the tree. Use a pruning saw to remove split or torn branches. Cut at a 45-degree downward angle 2 to 3 inches from the branch collar. The branch collar is the area underneath the branch that attaches the branch to the main trunk.
Remove large damaged branches. At 4 inches from the branch collar, make a cut underneath the branch; make sure the cut only goes through 1/3 of the branch's diameter. This first cut prevents the branch from tearing away from the tree and hurting the branch collar.
Make the second cut 2 inches down from the branch collar. Cut from the top of the branch at that location all the way through the branch. The third cut is at a 45-degree downward angle next to the branch collar of the tree.
Prune off any other damaged areas that do not present a safety hazard in midsummer.
Apply 1 1/4 inch of water each week during dry spells underneath the canopy of the maple tree. Water the tree so the soil is moist at a depth of 12 inches.