Piper ARCHER II Pilot Operating Handbook page 139

PIPER AIRCRAFT CORPORATION SECTION 7
PA-28-181, ARCHER I DESCRIPTION & OPERATION
7.7 LANDING GEAR
The three landing gears use Cleveland 6.00 x 6 wheels, the main gear
wheels (Figure 7-1) being provided with brake drums and Cleveland single
disc hydraulic brake assemblies. All three wheels use 6.00 x 6, four-ply
rating, Type III tires with tubes.
A spring device is incorporated in the rudder pedal torque tube
assembly to provide rudder trim. A bungee in the nose gear steering
mechanism reduces steering effort and dampens bumps and shocks during
taxiing. By using the rudder pedals and brakes the nose gear is steerable
through a 30 degree arc each side of center. Later aircraft have the bungee
removed from the nose gear steering mechanism and are steerable througha
20 degree arc each side of center. A shimmy dampener is also included in the
nose gear.
The three struts are of the air-oil type, with a normal extension of 3.25
inches for the nose gear and 4.50 inches for the main gear.
The standard brake system consists of dual toe brakes attached to the
rudder pedals and a hand lever and master cylinder located below and
behind the left center of the instrument sub-panel. The toe brakes and the
hand brake have their own brake cylinders, but they share a common
reservoir, The brake fluid reservoir is installed on the top left front face of
the fire wall. The parking brake is incorporated in the master cylinder and is
actuated by pulling back on the brake lever, depressing the knob attached to
the left side of the handle, and releasing the brake lever. To release the
parking brake, pull back on the brake lever to disengage the catch
mechanism and allow the handle to swing forward (refer to Figure 7-5).