Troy-Bilt 634A, 634K manual Maintenance, Tiller Lubrication

SECTION5: MAINTENANCE

WARNING: Before

inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to come to acomplete stop, disconnect spark plug wire and movewire awayfrom spark plug. Remove

ignition keyon electric start models.

Failureto follow these instructions can result in serious personal injury or property damage.

MAINTENANCESCHEDULE

PROCEDURE	NOTES
Check motor oil level	2,3
Clean engine	2,7
Check drive belt tension	1,4
Check nuts and bolts	1,4
Change motor oil	4,6,9
Lubricate tiller	4
Service engine air cleaner system	7

Check gear oil level in transmission 1,5

Checktines for wear	5
Check air pressure in tires	5
(if unit has pneumatic tires)
Service spark plug

NOTES

1Check after first 2 hours of break-in operation.

2 Before each use.

3Every 5 operating hours.

4Every 10 operating hours.

5Every 30 operating hours,

6Changemore frequently in dusty conditions.

7 - See Engine Owner's Manual forservice recommendations.

8 - Whichever time interval occurs firsL g - Changeafter first 2 hours of break-in

TILLER LUBRICATION

After every 10 operating hours, oil or grease the lubrication points shown in Figure5-1 and described below.

Useclean lubricating oil (#30weight motor oil is suitable) and clean generalpurpose grease (greasecontaining a metallubricant is preferred, if available).

•Removethe wheels,cleanthe wheel shaft (A, Fig. 5-1) and apply a thin coating of grease to the wheel shaft.

•Greasethe back, front and sides of the depth regulator lever (B, Fig. 5-1).

•Removethe tines andclean the tine shaft

(C,Fig. 5-1). Usea file or sandpaperto gen- tly removeany rust, burrs or rough spots (especiallyaround holes in shaft). Apply

grease to ends of shaft before installing tines.

•Oil the threads on the handlebar height adjustment screws and the handlebar attaching screws (D, Fig. 5-1).

If acover is leaking,check for loose screws. If the screws aretight, a new gasket or oil seal may be required.

If the leak is from around a shaft and oil

seal, the oil seal probably needsto be replaced. Seeyour authorized dealeror contact the factory for service or advice.

IMPORTANT:Neveroperatethe tiller if the transmission is low on oil. Checkthe

oil level after every 30 hours of operation and wheneverthere is any oil leakage.

CHECK HARDWARE

Checkfor loose or missing hardwareaf- ter every 10 operatinghours andtighten

or replace(as needed)before reusing tiller

Besure to checkthe screws underneath the tiller hoodthat securethe transmis- sion coverandthe DepthRegulatorLever to the transmission.

CHECKTIRE PRESSURE

(Models with pneumatictires)

Checkthe air pressurein both tires. The air pressure should be between 15 PSi and 20 PSi (pounds per square inch).

Keepboth tires equally inflated to help prevent machinefrom pulling to one side.

TRANSMISSION

GEAROIL SERVICE

Checkthe transmission gear oil level after every 30 hours of operation or wheneveryou notice any oil leak. Oper- ating the tiller when the transmission is low on oil can result in severedamage.

A. To Checkthe Transmission

Figure 5-1

CHECKFOR OIL LEAKS

Beforeeach use,checkthe tiller for signs of an oil leak-- usually a dirty, oily accumu- lation either on the unit or on the floor.

Alittle seepagearound a cover or an oil seal is usually not a causefor alarm. How- ever,if the oil drips overnight, then imme-

diate attention is needed. Ignoring an off leak can result in severe transmission

damage!

Gear Oil Level:

1.Checkthe gear oil level when the transmission is cool. Gearoil will expand in warm operatingtemperatures and this expansionwill provide an incor- rect oil level reading.

2.With the tiller onlevelground, pullthe Depth Regulator Leverall the way up.

3.Removethe oil fill plug (A, Fig. 5-2)

from the transmission housing andlook inside the oil fill hole to locatethe main

drive shaft situated below the hole.

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