It's hard to create a unique entry in the crowded treadmill market, but ProForm managed it, giving the Crosswalk 400E upper-body workout arms, much like what you'd find on an elliptical trainer. Upper-body arms aside, the Crosswalk 400E lacks other features that are common on most ProForm models, including a range of preprogrammed workouts and iFit compatibility. The 400E, which originally retailed for less than $500, remains a no-frills, entry-level model as of 2010.
Use and Controls
Avoid the temptation to stand on the treadbelt as you push "Start"; the sudden belt movement might off-balance you. Instead, plant your feet on the stationary foot rails to either side of the belt. Insert the treadmill key into the console, and press "Start" to get the belt moving. Hold onto the stationary handlebars for support as you step onto the moving treadbelt. Use the speed up or down buttons to adjust the treadmill to your desired speed. You can program a calorie goal by pushing the up or down arrows beneath the "Calorie Goal" label before you press "Start." Use the incline up and down arrows to adjust the treadmill's incline.
Upper Body Arms
Once you've got the treadbelt moving at your desired speed, use the upper body arms to burn more calories and built upper-body muscular endurance. Grasp one handle in each hand and work them forward and back, in the natural swinging motion of a walk or run. Twist the knob at the base of each arm clockwise for more resistance, or counterclockwise for less resistance.
Features
The 400E treadmill deck folds vertically against the console for easy storage. Transport wheels on the front end of the frame make it possible for a single person to move the folded treadmill around. The 400E also has a thumb pulse sensor built into the left side of the console. With handgrip heart rate monitors, you can walk or run as the machine measures your heart rate. In order to get an accurate reading with the thumb sensor, stand on the stationary foot rails and hold your thumb against the sensor for at least 15 seconds.
Specs
The Crosswalk 400E has a maximum user weight limit of 250 lbs. It must be plugged into a 120-volt circuit -- standard U.S. current -- to work. The manufacturer recommends using a surge suppressor to protect your treadmill's electrical systems.
Troubleshooting
Slide your hands beneath a properly tensioned treadbelt and it'll lift 2 to 3 inches away from the decking platform. If your Crosswalk 400E's belt starts to slip or slow down when you walk on it, you may need to adjust the tension.
Locate the two rear roller bolts located on the back end of the treadmill frame, one to each side of the belt. If the belt slows as you walk on it, turn each bolt counterclockwise 1/4 turn. If the belt shifts to the left, tighten the left-hand bolt by 1/2 turn. If the belt slips to the right, loosen the left-hand bolt by 1/2 turn. If the belt slips evenly beneath you as you walk -- instead of slipping to one side -- tighten both rear bolts by 1/4 turn.
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