"2033ES / 2633ES" Service & Parts Manual - ANSI Specifications
October 2008
Page 4-9
PROBLEM
REMEDY/SOLUTION
No Drive in
REVERSE only
Pump motor
NOT operating
while
attempting to
drive
Troubleshooting (continued
POSSIBLE CAUSE
DRIVE
(
CONTINUED
)
Micro-switch S7 inoperative
Check operation of micro-switch
Located in upper control box on joystick
Mode Selector Switch S6 faulty
Check power through S6 on wire 10
Damaged wiring or poor plug
connection
Check wire 10 through plug connections from upper
control box to Diode Board
Failed diode in diode board
Test diodes on diode board
Replace diode board
No Drive in
FORWARD only
Pump motor
NOT operating
while
attempting to
drive
Micro-switch S8 inoperative
Check operation of micro-switch
Located in upper control box on joystick
Mode Selector Switch S6 faulty
Check power through S6 on wire 11
Damaged wiring or poor plug
connection
Check wire 11 through plug connections from upper
control box to Diode Board
Failed diode in diode board
Test diodes on diode board
Replace diode board
No Drive in
REVERSE only
Pump motor
OPERATES
while
attempting to
drive
Drive valve SV3 not shifting
Check power to SV3, remove SV3
Check for contaminations
Replace SV3
No Drive in
FORWARD only
Pump motor
OPERATES
while
attempting to
drive
Drive valve SV3 not shifting
Check power to SV3, remove SV3
Check for contaminations
Replace SV3
Drives in one
direction
regardless of
direction
operated
Drive valve SV3 sticking
Check SV3 for contaminations
Replace SV3
Drive valve SV3 powered in one
direction
Short in wiring, faulty diode board.
Summary of Contents for 2033ES
Page 28: ...October 2008 2033ES 2633ES Service Parts Manual ANSI Specifications Page 1 14...
Page 96: ...October 2008 2033ES 2633ES Service Parts Manual ANSI Specifications Page 5 20...
Page 122: ...October 2008 2033ES 2633ES Service Parts Manual ANSI Specifications Page A 24...
Page 142: ...October 2008 2033ES 2633ES Service Parts Manual ANSI Specifications Page B 20...
Page 164: ...October 2008 2033ES 2633ES Service Parts Manual ANSI Specifications Page C 22...
Page 182: ...October 2008 2033ES 2633ES Service Parts Manual ANSI Specifications Page D 18...
Page 214: ...October 2008 2033ES 2633ES Service Parts Manual ANSI Specifications Page E 32...
Page 246: ...October 2008 2033ES 2633ES Service Parts Manual ANSI Specifications Page E 32...
Page 256: ...October 2008 2033ES 2633ES Service Parts Manual ANSI Specifications Page F 10...