General 240H Operator's Manual page 33

240H ONE MAN HOLE DIGGER
FORM GOM14081201, VERSION 1.1
a) Lubrication grease can be forced out between the
bearings and the final driveshaft.
b) The gasket that separates the two halves of the
transmission can push out, causing a loss of lubrication
grease.
The potential for these problems can be minimized by
cleaning the pressure relief valve at regular intervals
with an approved safety solvent. The transmission is
shipped from the factory filled with approximately 8
ounces (224g) of high temperature lubricant. This
lubricant contains an extreme pressure additive which
is designed to cling to the gear teeth at high rotational
speeds.
1) Change the transmission lubricant every 50 hours of
operation, or more often as necessary, if the Hole
Digger is operated in extremely dusty or dirty
conditions.
2) Drain the fuel from the fuel tank into a UL® approved
container. Wipe any excess spilled fuel and dispose of
properly. Refer to the Service section for more detailed
information.
3) Position the Hole Digger on a suitable work bench
with the operator handle level with the ground. As an
alternative, the transmission driveshaft can be securely
mounted in a suitable bench vice. Wipe any dust or dirt
from the area where the transmission separates.
GASOLINE IS AN EXTREMELY FLAMMABLE FUEL.
USE EXTREME CAUTION WHEN HANDLING
GASOLINE. DO NOT SMOKE OR BRING FIRE OR
FLAME NEAR THE FUEL.
4) Loosen and remove the six capscrews that fasten
the transmission together. Using the rubber hammer,
split and separate the transmission cover and case.
Exercise caution not to damage the dowel pins located
on opposite ends of the transmission.
5) If the bearing journals of the secondary pinion, PN
210-0310, are difficult to remove from the ball bearings,
the transmission cover and case will separate with
greater difficulty. It maybe necessary to provide a
supplemental force to the pinion journals to assist the
removal process. Remove the PN 37040200 Screw
from both bearing housings. Insert a 1/4-20 UNC
capscrew of one inch minimum length into the housing.
Using the wrench, turn the capscrew in a clockwise
direction. This will provide thrust against the pinion
bearing journal until it clears the pinion gear support
bearing. Repeat the process with the remaining pinion
gear bearing journal if necessary. FIGURE 14. Remove
the PN 210-0100 gasket. Remove the primary gear
and pinion assembly, PN 210-0340 and PN 210-0310.
NOTE: THIS PROCESS IS ONLY NECESSARY IF
THE FIT BETWEEN THE PINION GEAR JOURNALS
A N D T H E B A L L B E A R I N G S D O N OT A L L OW
DISASSEMBLY OF THE TRANSMISSION COVER
AND CASE.
FIGURE 14
6) Clean the interior surfaces of the transmission cover
and case with an approved safety solvent.
7) Clean each gear with an approved safety solvent.
Inspect the teeth for excess wear, cracks or fatigue.
Replace each component as necessary.
Observe all applicable safety precautions for the
solvent. Dispose of the used transmission
lubricant according to all applicable laws and
regulations.
8) If necessary, reinstall PN 37040200 Screw into the
bearing housings. Properly secure with the provided
hardware.
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