Black & Decker Corp.
USA SERVICE OPERATIONS
TECHNICAL SERVICES DEPARTMENT SB06122
SERVICE BULLETIN PAGE 1 OF 3
ISSUED: November 9, 2009
Revised July 25, 2011
Written By: K. Butler
SUBJECT: GENERATOR IMPROVEMENTS
UNITS: DG3000, DG3000C, DG4400B, DG4400BC, DG6300B, DG6300BC, DG7000B, DG7000BC TYPE 1
DATE CODES AFFECTED: UP THRU 2009-35
Improvements have been made to the recoil starters for all of these units. The fuel cap has also been improved on DG3000’s. New part numbers have been set up for each. The improved parts MUST be installed under warranty on all units that come in for repair if they are before the date codes mentioned below. It will be necessary to make these same upgrades to any generator engine ordered from Fidelitone unless it has the new recoil starter.
Recoil Starter:
A second hole with a grommet is being added at the “12 o’clock” position which will greatly reduce rope wear for users who pull straight up rather than out to the side. The new part numbers are N035917 (13HP), N035918 (9HP) and N035919 (6.5HP). These went into production at date code 2009-36.
Low Oil Switch:
Improved oil sensor switches went into production at date code 2009-20. The new part numbers are 285820-65 (6.5HP) and 285820-66 (9/13HP).
Head Gasket (9 & 13HP only):
Improved head gaskets went into production at date code 2009-20. The new part numbers are 285820-73 (9HP) and 285820-74 (13HP).
Replace the Low Oil Switch and Head Gasket only if failed.
Black & Decker Corp.
USA SERVICE OPERATIONS PAGE 2 of 3 SB06122
Gas Cap (DG3000 only):
Despite the 285820-67 gas caps being tested before being shipped to us, we are still seeing some that will not vent causing no runs after approximately 10 minutes. This new cap (285820-72), shown on the left, will either be black or chrome and will have eight finger notches instead of six. The improved gas cap went into production at date code 2009-35.
ALL DG3000 UNITS MUST HAVE THE NEW FUEL CAP WHEN IT LEAVES THE SERVICE CENTER AND THE OLD CAP IS TO BE RETURNED.
Choke Linkage:
Check to make sure the linkage works smoothly and does not bind. Lubricate the linkage as shown below with 286445-00, 875914, or 429698-00 grease.
Lubricate this area
Governor Levers:
In some cases, the governor lever can slip on the governor shaft affecting the speed of the unit. The procedure below outlines how to reset it.
Black & Decker Corp.
USA SERVICE OPERATIONS PAGE 3 of 3 SB06122
Governor Lever Adjustment
1) Back off both idle adjustment screws far enough so that they are out of the way (black plastic screw at carburetor and screw with black spring under the head on solenoid L-shaped linkage)
2) Loosen governor arm from shaft coming out of top of engine.
3) On 9 & 13 hp engines rotate shaft counter-clockwise with governor arm held to the right at WOT (Wide Open Throttle). On 6.5hp engines rotate shaft clockwise while doing this.
4) If the governor is set properly, the engine will be at WOT when turned off. If the throttle is even slightly off of WOT this is an indication the governor is not set properly.
5) Governor spring (large silver) should be in the hole on the governor lever closest to the shaft.
6) Back out high speed adjustment screw on top of engine at the small silver lever. Two complete turns will do.
7) Start engine. If it hunts (speed varies up and down) move governor spring to outer hole. If power is too low, move it back in toward the shaft. Note – hunting is unpredictable and sometimes the opposite movement of the spring helps.
8) Engine will probably be running slow. Adjust high speed to 3600 rpm by turning in high speed screw on top of the engine to increase speed, out to slow down. If engine still runs too fast, governor may still be out of adjustment or it moved during tightening.
9) Make sure idle linkages on solenoid are not binding and are free to move the full travel. Also make sure throttle linkage from carburetor to governor lever moves back and forth freely (with engine off).
10) Make sure that idle screw with black spring under the head on the L-shaped lever on the solenoid is backed out far enough to just clear touching the governor lever.
11) Start engine. Turn idle control on after engine has warmed up. The solenoid should push the governor lever and throttle to the left toward the carburetor and the black plastic throttle should stop up against the black plastic screw. Adjust idle speed to 2700 – 2800 rpm by adjusting the screw in to increase idle speed, out to reduce idle speed. If solenoid does not push the lever over far enough to touch black plastic screw, the screw with the black plastic spring on the L-shaped solenoid lever can be turned in to make this happen. Both of these screws can be adjusted in or out so that one is not at the extreme of its adjustment length.
12) Cycle the idle control switch on and off a few times and check both high speed and idle speed to ensure that they are still correct.
Technical Services Dept., Mail Stop M397, 701 E. Joppa Rd., Towson, MD 21286 Phone: (410) 716-3900 / Fax: (410) 847-9329