HP MOWER Owner’s Manual
Part No 521316
Form No F110315A
10
TROUBLESHOOTING
CABLE ADJUSTMENTS
Transaxle Drive Control Cable Adjustment
When the transaxle drive belt slips, the drive control cable needs to be adjusted or the
belt needs to be replaced with a new belt.
Cable Adjustment:
2. Using a ½ “ open end wrench, turn the inside adjusting nut counter
-clockwise and
back it off 1/8", then tighten the outboard adjusting nut against the support bracket (see
figure 17-2).
3. Check for proper operation. If the operation is not correct, repeat step 2.
4. Replace the access door.
The drive control cable adjustment should be the minimum amount required so the belt
does not slip when the drive is engaged.
Blade Drive Control Cable Adjustment
When the blade drive control lever is depressed, the blades should turn and the blade
drive belt should not slip. When the cable is properly adjusted the tension spring on the
end of the control cable will open slightly (only enough for a piece of paper to slip
between the coils). Cable Adjustment:
1. Remove the belt cover and observe the tension spring on the end of the cable that
attaches to the idler when the blade drive lever is depressed. The spring should just
break open.
2. If adjustment is required, using a ½” open end wrench, turn the inboard adjustment
nut counter-clockwise and back it off 1/8". Then tighten the outboard adjustment nut
against the cable support bracket (Item 49).
3. Check the spring tension with the blade drive lever depressed.
4. Readjust the control cable as needed for proper tension.
5. Replace the deck belt cover.
Note: Too much tension will shorten belt and bearing life and too little tension will allow
the belt to slip.
Problem
Possible Cause
Solution
Engine will not start.
Choke not on. Out of gasoline, bad or old gas. Spark plug wire
disconnected. Dirty air cleaner. Blade clutch is engaged
Move throttle to start position. Check Gasoline. Check
for spark with an approved tester. Clean or replace air
cleaner. Disengage the Blade clutch lever.
Engine will not stop
Damaged control cable. Harness Wire is disconnected or
damaged. Damaged ignition switch.
Replace control cable. Reconnect harness wire or
replace if damaged. Replace switch.
Engine runs poorly
Spark plug wire loose. Engine RPM set too low. Carburetor out
of adjustment. Water or dirt in fuel system. Spark plug fouled,
faulty or wrong gap
Sharpen or replace blade (pg 12). Check engine RPM
(refer to engine manual). Adjust carburetor (refer to
engine manual). Reset gap or replace spark plug (refer
to engine manual).
Abnormal vibration.
· Loose or out of balance blade. Bent blade. Loose engine bolts Stop work immediately. Check blade mount and
balance. Replace damaged or bent blade if required (pg
12). Check engine mount.
Uneven cut
Height adjust is not set correctly. Dull or bent blade. Tire
pressure low on one side.
Be sure height adjust is set the same on both sides(pg
10). Sharpen or replace blade (pg 12). Adjust pressure.
Will not cut or has poor cutting
performance
Dull or bent Blade. Clogged deck. Engine running at too low
RPM. Wet Grass. Excessively high grass.
Sharpen or replace blade (pg 12). Unclog deck(pg 10).
Check engine RPM (refer to engine manual). Do not
mow when grass is wet. Mow once at a high cuting
setting then mow again at desired setting or make a
narrower cutting path.
Belt slips or smokes
Belt tension too low. Belt worn or stretched. Pulleys worn or
damaged. Control cable out of adjustment.
Increase tension at idler (pg 14). Replace belt. Replace
Pulleys. Adjust control cable
No self propelling
Not set to gear. Out of adjustment clutch cable. Broken clutch
cable. Worn or broken belt.
Shift lever to desired gear. Adjust clutch cable(pg 14).
Replace with new cable. Replace belt (pg 13).
Self propelled drive will not
release.
Clutch cable out of adjustment. Damaged drive clutch lever.
Adjust clutch cable (pg 14). Replace drive clutch lever.
Engine is locked, will not pull
over.
Debris locked against blade. Damaged engine.
Remove debris (pg 10). Refer to engine owner's manual.
Replace control cable.
Not
for
Reproduction