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© 2005 Alamo Group Inc.
2-30
MACHETE
SERVICE BULLETIN No. 083005-1
Alamo Industrial Technical Services Department
1502 East Walnut
Seguin, Texas 78155
830-379-1480
Port Plug Update:
Subject:
On Machete and Brahma pumps utilizing the
new design Servo Solenoid Valve assembly, An incor-
rect port plug was installed in the port next to the solenoid
Valve. This incorrect port plug does not allow oil trapped
on the back side of the servo piston to escape to tank,
resulting in incomplete shifting of the servo piston and
thus incomplete stroke of the pump, causing a notice-
able decrease in blade speed and performance. Pumps
that need updating can be externally identified by the wire
exit direction on the solenoid coil, a rectangular wire
connection point on the solenoid coil, and a raised button
on the port plug as shown in figure 1.
Once the plug is removed from the manifold, the
incorrect plug can be identified by the secondary sealing
surface and extended length as shown in figure 2.
Service Instructions:
Secure the tractor to facilitate safe repair. Thor-
oughly clean the top of the pump and around the port plug
and solenoid valve to prevent contamination from be
introduced to the hydraulic system. Remove the port
plug as shown in figure 1 and replace with new port plug
(P/N 02983170) as shown in figure 2. Run and test
mower for operation and hydraulic leaks.
Parts Required:
Part No. Qty Description
02983177 1 Port Plug (New Style)
Models: All Machetes (except on TV140 & 9030 Tractor)
Shipped Between Mar. 1, 2005 and Aug. 19, 2005
All Brahmas
Shipped between Mar. 1, 2005 & Aug. 19, 2005
Date:
Aug. 30, 2005
Bulletin No:
083005-1
Parts:
100 % at Dealer Net
Labor:
0.5 hr At dealers Register
Shop Rate
Termination Date:
Nov. 30, 2005
Old Parts Disposition:
Scrap, No Parts to Return
Warranty Compensation will be provided following proper filing of warranty claim in accordance with
the Alamo Industrial Warranty Policy. Claim allowance may vary in accordance with laws governing a specific region.
Any Warranty associated with this service bulletin must be within authorized dates.
Raised
Button on
Port Plug
Remove and
Replace Port
Plug
Wires protrude horizon-
tally out of a rectangular
connector on solenoid coil
Figure 1
Incorrect old style plug with two sealing
surfaces
Correct new style plug
with one sealing surface
Figure 2