14
MERRY TILLER SERVICE BULLETIN
TIME TO CHANGE THE TINE SHAFT SEALS
Tine Shaft Seal Replacement Instructions
It is extremely important that the oil seals on the tiller transmission be inspected and replaced regularly to ensure proper lubrication and to
prevent dirt from entering the transmission. Both sides of the tine shaft have two oil seals. These seals are inserted back to back over the tine
shaft. The inner seal faces into the transmission and is designed to keep lubricant from escaping from the transmission. The outer seal faces
outward and is
designed to keep dirt out of the transmission. The Merry Tiller transmission is lubricated with heavy “00” grease. If the seals
fail, it may not be noticed due to the heavy consistency of the grease. This is the best possible
lubricant available and will add years of life to your Merry Tiller. Seals should be inspected
regularly and replaced as needed or before periods of expected extended use.
To replace the seals proceed as follows.
1.
Take a screwdriver or awl and hammer along the tine shaft until you can pry the first
seal out.
2.
Repeat and take the second seal out.
3.
Place the new seal on the tine shaft with smooth side facing out, and press into place.
(Note: A 1 ½” ID piece of plastic pipe works great to do this).
4.
Place the second seal on the tine shaft with the smooth side facing in, and press into
place.
5.
Repeat to other side of the transmission.
Note: It is very important that the smooth side of the two seals be against each other.
Replacement Parts
PART #
QTY
WHERE USED
DESCRIPTION
708-3241
1
MINNIE
OIL SEAL
708-3241-10
10
MINNIE
OIL SEAL
– 10 PACK
708-3241-50
50
MINNIE
OIL SEAL
– 50 PACK
706-0344
1
SUBURBAN/INTERNATIONAL
OIL SEAL
706-0344-10
10
SUBURBAN/INTERNATIONAL
OIL SEAL
– 10 PACK
706-0344-50
50
SUBURBAN/INTERNATIONAL
OIL SEAL
– 50 PACK
MAINTENANCE SCHEDULE
Frequency
Service required
After every use
Inspect belts & pulleys for proper alignment and excessive wear
Check operation of belt and idler, make sure tines stop & start correctly
Inspect transmission for any leakage, check all bolts for tightness. Pay particular attention to
center bolt that secures the transmission to the frame rails
Check tines for wear and excessive play, make sure no pins are missing
Perform normal engine maintenance
Every 150 hours
Inspect transmission case assembly, conduct test for excessive travel, (see attached). Check
for excessive wear on case halves
Check tine shaft and drive shaft for up and down play, if loose replace bearings.
If transmission is OK replace tine shaft and drive shaft seals
Inspect tines for wear, if cutting corner is rounded replace tines. Check pin holes for
elongating and wear, make sure no pins are missing
Anytime the transmission is unbolted from the frame rails it is necessary to secure the internal
sprockets with a 5/16" rod cut to the same width of the transmission case. It is possible for
the internal sprockets to move if not secured during service
Every 600 hours
Remove transmission for internal inspection. Disassemble and inspect all parts for wear.
Clean all parts, replace worn parts as needed, relubricate with approx. 9 oz.“00” grease.
Reassemble with new case gasket and reinstall on tiller.
Anytime the transmission is unbolted from the frame rails it is necessary to secure the internal
sprockets with a 5/16" rod cut to the same width of the transmission case. It is possible for
the internal sprockets to move if not secured during service
