Troy-Bilt 8 HP - Manual (Page 68)

PROBLEM PROBLEM
WHAT TO DO AND REFERENCE WHAT TO DO AND REFERENCE
B. Lever shifts into “FAST” wheel gear,
but not into “SLOW” wheel gear.
• C onnecting rod at end of lever m ight be
backw ards, or bent in tow ard transm ission hous­
ing and hitting it. O ther shifting linkage m ight be
bent. Straighten or replace linkage. S ee P hoto
7-1.
• C lutch inside transm ission m ay be binding.
S ee P roblem 2-A .
C. Lever moves freely, but won’t
shift in or out of gear.
e E ccentric shifting pin inside transm ission m ay
be broken (rare) or w orn. D isconnect linkage
from eccentric lever and try m oving eccentric
lever by hand. S ee Photo 7-1. If lever m oves
easily, contact Technical Service D epartm ent.
3. WHEELS AND TINES WON’T TURN
• R eview operation of controls. See S ections 3
and 4.
• C heck condition and adjustm ent of drive belt
and reverse disc. S ee S ection 6.
• M ounting bolt for transm ission drive pulley
m ay be loose. (S ee P hoto 6-1 on page 37). If so,
drive belt or reverse disc w ill turn pulley, but
pulley w on’t turn m ain drive shaft.
• W orm gears that drive w heel and tiller shafts
m ay be w orn.
4. WHEELS TURN, BUT TINES WON’T
• Tines/P TO C lutch Lever m ust be in
“E N G A G E ” position. S ee Section 3.
• Tines/P TO C lutch Lever m ay need adjusting.
• K ey for “dog” clutch on tine attachm ent m ain
drive shaft m ay be m issing or broken.
• W orm gears that drive tine shaft m ay be
w orn.
• K eys that hold tine holders to tine shaft m ay
be m issing or broken. To check, rem ove hold­
ers. S ee S ection 6.
• K ey for bronze w orm gear on tine attachm ent
m ain drive shaft m ay be m issing or broken.
5. TINES TURN, BUT WHEELS WON’T
• C heck operation of W heel S peed Lever. See
P roblem 2.
• H i-P ro key inside w heel clutch m ay be m iss­
ing or broken. If so, clutch w ill not turn w heel
shaft.
• “FA S T” and “S LO W ” speed w heel gears m ay
be w orn. If only one gear is w orn, there w ill only
be one w heel speed.
• W orm gear that drives pinion shaft and pin­
ion gears m ay be w orn.
• “FA S T” and “S LO W ” speed pinion gears m ay
be w orn. If only one gear is w orn, there w ill only
be one w heel speed.
• D rive “dogs” on sides of w heel clutch m ay
be w orn or broken. If only one side of clutch is
affected, there w ill only be one w heel speed.
6. WHEELS AND TINES TURN
ON TOP OF GROUND, BUT STOP
OR HESITATE IN SOIL
• D rive belt m ay be loose. S ee S ection 6.
• M ounting bolt for transm ission drive pulley
m ay be loose. See P hoto 6-1 on page 37.
7. TILLER JUMPS WHILE TILLING
• D epth R egulator Lever set too deep for soil
conditions. Low er lever for shallow er setting.
• E ngine throttle speed too fast.
• Tiller w heel speed too fast for soil conditions.
C hange to “LO W ” belt range or “S LO W ” w heel
speed.
8. DEPTH REGULATOR LEVER
DIFFICULT TO MOVE
• Lubricate spring assem bly and depth adjust­
m ent bar. See Section 6.
• C heck for bent depth adjustm ent bar.
9. WHEEL AND SHAFT MOVE
OUT TO ONE SIDE
• S nap ring on w heel shaft m ay be dislodged
from its groove. R aise w heels off ground and
check for back and forth play in shaft. If there is
play, one or both snap rings are loose.
66