ProForm ENDURANCE 520 E User Manual page 26

HOW TO ADJUST THE DRIVE BELT
If the pedals slip while you are pedaling, even while
the resistance is adjusted to the highest level, the drive
belt may need to be adjusted.
To adjust the drive belt, first unplug the power
adapter.
See assembly step 16 on page 13. Use a standard
screwdriver to pry off the Shield Cover (75) and the
Shield Cover Cap (118).
See assembly step 15 on page 13. Remove the
Right Leg Outer and Inner Covers (69, 83).
See assembly step 12 on page 11. Remove the
Right Pedal Arm (58) from the Right Upper Body
Leg (60).
Next, remove the M8 x 16mm Screw (95), the Large
Axle Cover (53), and the M8 Washer (not shown) from
the right Crank Arm (20). Then, carefully remove the
Right Roller Arm (59) and the Right Pedal Arm (58)
from the elliptical.
95 53
20
58
59
See EXPLODED DRAWING C on page 35. Identify
the Left and Right Shields (73, 74). Remove the
M4 x 25mm Screws (124), the M4 x 19mm Screws
(5), and the M4 x 48mm Screw (107) from the Left and
Right Shields. Then, remove the Right Shield.
Next, locate and loosen the Idler Screw (89). Next,
tighten the Belt Adjustment Screw (91) until the Drive
Belt (113) is tight. Then, retighten the Idler Screw.
113
Then, reattach the parts that you removed and plug in
the power adapter.
26
89
91