Extending or withdrawing the spikes and the amount of contact that the chassis has to the surface
ƵƉŽŶǁŚŝĐŚŝƚŝƐŵŽƵŶƚĞĚǁŝůůŝŶŇƵĞŶĐĞƐŽƵŶĚƋƵĂůŝƚLJ͘KƵƌƌĞĐŽŵŵĞŶĚĂƟŽŶŵŝŐŚƚŶŽƚďĞŝĚĞĂůĨŽƌ
ĞǀĞƌLJƐLJƐƚĞŵĂŶĚƌĞƋƵŝƌĞƐĞdžƉĞƌŝŵĞŶƚĂƟŽŶ͘
dŚĞϮͲƉŽůĞĐŽŶŶĞĐƚŽƌĂƚƚŚĞƌĞĂƌŽĨƚŚĞĐŚĂƐƐŝƐŝƐĨŽƌƚŚĞďĞĂƌŝŶŐŚĞĂƚĞƌ͘WůĞĂƐĞĐŽŶŶĞĐƚƚŚĞĐŽƌĚŽĨ
ƚŚĞƉŽǁĞƌƐƵƉƉůLJƚŽƚŚĞĐŽŶŶĞĐƚŽƌ͘dŚĞĐĂƉƐĐƌĞǁůŽĐŬƐƚŚĞĐŽŶŶĞĐƚŽƌĂŶĚŬĞĞƉƐŝƚŝŶƉůĂĐĞ͘
WůĞĂƐĞƌĞŵŽǀĞƚŚĞϮĐŽƩŽŶƐǁĂďƐŝŶƚŚĞďĞĂƌŝŶŐŚŽƵƐŝŶŐďĞĨŽƌĞƉůĂĐŝŶŐƚŚĞƉůĂƩĞƌŽŶƚŚĞďĞĂƌŝŶŐ͊
WůĂƩĞƌ
dŚĞƚƵƌŶƚĂďůĞƉůĂƩĞƌŝƐǀĞƌLJŚĞĂǀLJ͘/ƚ͛ƐĂĚǀŝƐĂďůĞƚŽůŽŽŬƚŚƌŽƵŐŚƚŚĞŚŽůĞ
for the spindle when
ĐĂƌĞĨƵůůLJ
ůŽǁĞƌŝŶŐƚŚĞƉůĂƩĞƌŽŶƚŚĞďĞĂƌŝŶŐƚŽŬĞĞƉ
ŝƚĐĞŶƚƌĞĚ͘
ƩĞŶƟŽŶ͊WůĞĂƐĞŵĂŬĞƐƵƌĞƚŚĂƚLJŽƵƌŚĂŶĚƐĚŽŶ͛ƚŐĞƚĐĂƵŐŚƚďĞƚǁĞĞŶ
ƉůĂƩĞƌ ĂŶĚ ĐŚĂƐƐŝƐ͕ ĞƐƉĞĐŝĂůůLJ ǁŚĞŶ ůŽǁĞƌŝŶŐ ƚŚĞ ƉůĂƩĞƌ ŽŶ ƚŚĞ ϮͲĂƌŵ
ĂůĂŶĐĞ͊ WůĞĂƐĞ ƉůĂĐĞ ƉůĂƩĞƌ ŽǀĞƌ ďĞĂƌŝŶŐ &KZ ƉŽƐŝƟŽŶŝŶŐ ŵŽƚŽƌ
ŶĞĂƌƚŚĞdd͘
ůǁĂLJƐĐĂƌƌLJƉůĂƩĞƌĂŶĚĐŚĂƐƐŝƐƐĞƉĂƌĂƚĞůLJ͘
Motor
dŚĞ ŵŽƚŽƌ ƐŚŽƵůĚ ďĞ ƉůĂĐĞĚ ŽŶ ƚŚĞ ůĞŌ ƐŝĚĞ ŽĨ ƚŚĞ ƚƵƌŶƚĂďůĞ ;tŚĞŶ ǀŝĞǁĞĚ ĨƌŽŵ ƚŚĞ ĨƌŽŶƚ͘Ϳ
The
ŽƉƟŵĂůĚŝƐƚĂŶĐĞďĞƚǁĞĞŶƚŚĞƉůĂƩĞƌƌŝŵĂŶĚƚŚĞĐĞŶƚƌĞŽĨƚŚĞŵŽƚŽƌƉƵůůĞLJŝƐ
ϳ͕ϱĐŵ͘
dŚĞďĞůƚĐŽŶŶĞĐƚƐƚŚĞŵŽƚŽƌƉƵůůĞLJǁŝƚŚƚŚĞƉůĂƩĞƌĂŶĚƌƵŶƐƚŚƌŽƵŐŚƚŚĞŚŽƌŝnjŽŶƚĂůŐƌŽŽǀĞŝŶƚŚĞ
ƉůĂƩĞƌĂŶĚƚŚĞƉƵůůĞLJ͘
dŚĞŵŽƚŽƌŶĞĞĚƐƚŽďĞƉůĂĐĞĚĐŽƌƌĞĐƚůLJƚŽŵĂŬĞƐƵƌĞƚŚĂƚƚŚĞďĞůƚƌƵŶƐĨƌĞĞƚŚƌŽƵŐŚƚŚĞĐƵƚŽƵƚŝŶ
ƚŚĞŵŽƚŽƌŚŽƵƐŝŶŐ͘
dŚĞĂĐƌLJůŝĐĐŽǀĞƌĨŽƌƚŚĞŵŽƚŽƌŵŝŐŚƚŚĂǀĞĂƉƌŽƚĞĐƟǀĞƚĂƉĞƚŚĂƚĐĂŶďĞƌĞŵŽǀĞĚďĞĨŽƌĞƉůĂĐŝŶŐƚŚĞ
ĐŽǀĞƌŽŶƚŚĞŵŽƚŽƌ͘
dŚĞƐǁŝƚĐŚƵŶŝƚŽĨƚŚĞϮͲĂƌŵĂůĂŶĐĞŝƐƉĞƌŵĂŶĞŶƚůLJĐŽŶŶĞĐƚĞĚƚŽƚŚĞŵŽƚŽƌǁŚŝůĞƚŚĞƐǁŝƚĐŚƵŶŝƚ
ŽĨƚŚĞϭͲĂƌŵĂůĂŶĐĞŶĞĞĚƐƚŽďĞĐŽŶŶĞĐƚĞĚƚŽƚŚĞŵŽƚŽƌƚŚƌŽƵŐŚĂϱͲƉŽůĞƐŽĐŬĞƚŝŶƚŚĞĐŽŶŶĞĐƟŶŐ
ƌŽĚ͘dŚĞĐĂƉƐĐƌĞǁĞŶƐƵƌĞƐĂƐƚĂďůĞĐŽŶŶĞĐƟŽŶ͘
WůĞĂƐĞƌĞŵŽǀĞƚŚĞƐǁŝƚĐŚƵŶŝƚŽĨƚŚĞϭͲĂƌŵĂůĂŶĐĞďĞĨŽƌĞůŝŌŝŶŐƚŚĞŵŽƚŽƌƚŽƉƌĞǀĞŶƚĚĂŵĂŐĞƚŽ
ƚŚĞĐŽŶŶĞĐƚŽƌ͊
dŚĞ ĐĂďůĞ ŽĨ ƚŚĞ ŵŽƚŽƌ ĐŽŶŶĞĐƚƐ ƚŽ
ƚŚĞ ϯͲƉŽůĞ ƐŽĐŬĞƚ ŝŶ ďŽƚŚ ƚŚĞ ƐƚĂŶ
-
ĚĂƌĚ ƐŽůŝĚͲƐƚĂƚĞ ƉŽǁĞƌ ƐƵƉƉůLJ Žƌ ƚŚĞ
ŽƉƟŽŶĂů͕
ZƂEƚ //
ƚƵďĞĚ ƉŽǁĞƌ ƐƵƉƉůLJ͘
The
cap
screw
prevents
unin-
ƚĞŶĚĞĚ
ƌĞŵŽǀĂů
ŽĨ
ƚŚĞ
ĐŽƌĚ͘
There are 2 holes at the rear of the
ŵŽƚŽƌ ŚŽƵƐŝŶŐ͘ dŚĞLJ ŐŝǀĞ ĂĐĐĞƐƐ ƚŽ
the “trim pots” used for speed ad-
ũƵƐƚŵĞŶƚ͘ dŚĞ ƐĐƌĞǁĚƌŝǀĞƌ ŝŶĐůƵĚĞĚ ŝŶ
ƚŚĞ ƚŽŽů Ŭŝƚ ĮƚƐ ƚŚĞ ƚƌŝŵ ƉŽƚƐ͗ ƚƵƌŶŝŶŐ
11
