Echo LS21 Owners Manual v.1 - Manual (Page 28)

Fig. 12 Jack stand
Fig. 13 Jack stand hitch pin and lanyard
Fig. 14 Safety chain attach location
12. Attach jack stand to the hitch pole at the 4th hole
location from end of hitch pole. Secure to hitch pole with
3/8 x 3" bolt and lock nut. Insert hitch pin into the flange
hole of the jack stand and secure with cotter pin.
13. Attach nylon lanyard to the hitch pin as shown at right
and secure the other end to the jack stand with 1/4 x 3/4"
bolt, washer and nut.
14. Attach safety chains to hitch pole at the third hole
location from end of hitch pole using 3/8 x 3 1/4" bolt, a
washer on each side and 3/8" nylock nut.