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

2014
Jan.	1	Paid $290,000 cash plus $11,600 in sales tax and $1,900 in transportation (FOB shipping point) for a new loader. The loader is estimated to have a four-year life and a $29,000 salvage value. Loader costs are recorded in the Equipment account.
Jan.	3	Paid $7,000 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 $2,100.
Dec.	31	Recorded annual straight-line depreciation on the loader.

2015
Jan.	1	Paid $5,000 to overhaul the loader's engine, which increased the loader's estimated useful life by two years.
Feb.	17	Paid $1,250 to repair the loader after the operator backed it into a tree.
Dec.	31	Recorded annual straight-line depreciation on the loader.

Required:

Prepare journal entries to record these transactions and events.