Champion Contractors completed the following transactions and events involving the purchase and operation of equipment in its business.

2014

Jan. 1 Paid $287,600 cash plus $11,500 in sales tax and $1,500 in transportation (FOB shipping point) for a new loader. The loader is estimated to have a four-year life and a $20,600 salvage value. Loader costs are recorded in the equipment account.

Jan. 3 Paid $4,800 to enclose the cab and install air-conditioning in the loader to enable operations under harsher conditions. This increased the estimated salvage value of the loader by another $1,400.

Dec. 31 Recorded annual straight-line depreciation on the loader.

2015

Jan. 1 Paid $5,400 to overhaul the loader's engine, which increased the loader's estimated useful life by two years.

Feb. 17 Paid $820 to repair the loader after the operator backed it into a tree.

Dec. 31 Recorded annual straight-line depreciation on the loader.

Prepare journal entries to record these transactions and events.