13
26138
26135
50-Hour Maintenance
Every 50 hours of operation
(more frequently in severe conditions):
Remove and clean the cylinder cover
and clean grass and dirt from the cylin-
der fins.
Remove the cutting attachment, cutting
attachment holder and the gear shaft
collar. Remove the filler plug from the
side of the gearcase and press new
grease into the gear case until the old
grease has been pushed out. Use only
lithium-base grease such as Shindaiwa
Gear Case Lubricant or equivalent. See
Figure 24.
Filter Element
Hooked
Wire
Figure 25
CAUTION!
Make sure you do not pierce the fuel
line with the end of the hooked wire.
The line is delicate and can be dam-
aged easily.
26137
26136

Inspect the Gearcase Protector.

The metal gearcase protector (P/N 72958-
16210) is installed to protect the gearcase
flange from damage when working close to
sidewalks or other abrasive surfaces, and
should be routinely inspected for damage
or excessive wear. See Figure 28.
Lack of lubrication will cause rapid wear to
the flexible shaft and also to the shaft tube
liner, resulting in increased vibration and
greatly decreased service life. Remove and
lubricate the flexible shaft as follows:
1. Loosen the gearcase clamp screw.
2. Remove the gearcase index screw.
3. Slide the gearcase and shield assembly
from the shaft tube.
4. Pull the flexible shaft from the shaft
tube assembly, and clean the shaft thor-
oughly in solvent.
5. Inspect the shaft carefully, and discard if
worn or damaged.
6. Coat the entire length of the shaft with
Shindaiwa Premium Gearcase Lube (or
equivalent), and reinstall the shaft in the
shaft tube assembly.
Gearcase Index
Screw
Shaft Tube
Flexible Shaft
Gearcase Protector
(P/N 72958-16210)
When replacing the protector, inspect to be
sure that both of the protector mounting
screws are firmly tightened and each screw
is locked in place with a nut as shown in
Figure 28.
Flat
(toward
tube)
Shaft
Tube
Gearcase
Nut
Figure 26
Figure 27
Figure 28
D-shaped Shim
Washer

Lubricate the Flexible Shaft.

NOTE:
For extended shaft life, the flexible cable
should be reversed end-for-end during the
reinstallation process.
7. Insert the flexible shaft into the
female end of the gearcase pinion.
See Figure 26.
8. Install the gearcase on the shaft tube in
the reverse order of removal.
CAUTION!
The D-shaped shim washer must be
positioned with its at edge toward the
shaft tube.
New
Grease
Figure 24
Old
Grease
Shaft
Bolt
Bolt
Guard
Holder
A
Holder
B
Output
Shaft Collar
Blade
Use a hooked wire to extract the fuel
filter from inside the fuel tank. Remove
and replace the filter element. Before re-
installing the filter element, inspect the
condition of all the fuel system compo-
nents (fuel pick-up line, fuel return line,
tank vent, fuel cap and fuel tank). If dam-
age, splitting or deterioration are noted,
the unit should be removed from service
until it can be inspected or repaired by
a Shindaiwa-trained service technician.
See Figure 25.