SERVICE BULLETIN

TOPIC: Accessories
IDENT NO: 1-2620F
SUPERSEDES: 1-2620E
DATE: November 15, 2007
SUBJECT: Engine Protection Shutdown
MODELS AFFECTED: All Waukesha Engines

The tables in this Service Bulletin list “Alarm” and Alarm and shutdown values are based on using dry
“Shutdown” setpoints by engine series for various natural gas of 900 BTU/cu.ft. (35.38 MJ/m3
engine operation parameters. These values can be [25,V(0;101.325)]) Saturated Lower Heating Value
used as a guide when designing engine protection or (SLHV) as fuel. Refer to the “Gaseous Fuel Specifica-
monitoring systems. tion for Waukesha Engines” standard sheet, S-7884-7
or latest version, and the “Lubricating Oil Recommen-
The “alarm” values shown are suggested values; they
dations for Waukesha Engines” standard sheet,
can be changed to suit a specific application or mea-
S-1015-29 or latest version, for typical changes to
surement device. By using controls that simulta-
operating temperatures for jacket water and lube oil
neously shut off the fuel supply and ignition system
when running on landfill or digester gas fuels.
upon reaching a “shutdown” value, the potential for
engine damage is reduced. Refer to the most recent version of the Gas Engine
Alarm and shutdown Price Book to determine which shutdown devices are
CAUTION values indicate devia- included as standard equipment with any specific
engine model.
tion from designed operation and are not meant
for continuous engine service. Engine and control
systems must be designed to and operated at nor-
mal values. Disregarding this information could
result in product damage and/or personal injury.

WAUKESHA ENGINE
DRESSER, INC.
Page 1 of 8
WAUKESHA, WI 53188-4999
Service Bulletin No. 1-2620F
12V/18V220GL AT25GL/AT27GL
JACKET WATER (HT) OUTLET TEMPERATURE JACKET WATER OUTLET TEMPERATURE
Normal 100° C (212° F) Standard Cooling System
Alarm 103° C (217° F) 1 180° F (82° C) for continuous rating
Normal
200° F (93° C) for intermittent rating
Shutdown 108° C (226° F) 1
Alarm 10° F (5.5° C) above
LUBE OIL HEADER TEMPERATURE normal/design temperature
Normal 75° C (167° F) 20° F (11° C) above
Shutdown
normal/design temperature
Alarm 77° C (171° F)
Elevated Temperature Solid Water Cooling System
Shutdown 80° C (176° F)
Normal 210° – 250° F (99° – 121° C) solid water
LUBE OIL HEADER PRESSURE
Rated Speed Alarm 5° F (3° C) above normal/design temperature1
Idle (1200 or 1500 rpm)
Shutdown 10° F (5.5° C) above normal/design temperature1
Normal 4.2 bar (61 psi) 5.3 bar (77 psi)
LUBE OIL HEADER TEMPERATURE
Alarm 2.3 bar (33 psi)1 4.0 bar (58 psi)1 Normal 172° F (78° C)
Shutdown 2.0 bar (29 psi)1 3.5 bar (51 psi)1 Alarm 187° F (86° C)
INTAKE MANIFOLD TEMPERATURE Shutdown 197° F (92° C)
Normal Up to 10° C (9° F) above design intercooler LUBE OIL HEADER PRESSURE
water inlet temperature.
Normal 60 – 65 psi (415 – 450 kPa)
10° C (18° F) above design intercooler
Alarm
water inlet temperature1. Alarm 50 psi (345 kPa)3
20° C (36° F) above design intercooler Shutdown 45 psi (310 kPa)3
Shutdown
water inlet temperature1.
INTAKE MANIFOLD TEMPERATURE – AT25GL MODEL
INTAKE MANIFOLD PRESSURE
Normal Up to 10° F (5.5° C) above design
Contact Waukesha Sales Engineering intercooler water inlet temperature
GAS PRESSURE AT GAS TRAIN INLET 20° F (11° C) above design intercooler water inlet
Alarm
Normal 4 – 6 bar (58 – 87 psi) temperature
30° F (17° C) above design intercooler water inlet
Alarm 6.5 bar (94 psi)2 Shutdown
temperature
OVERSPEED
INTAKE MANIFOLD TEMPERATURE – AT27GL MODEL
Shutdown Not to exceed 7% over governed speed.
Normal Up to 10° F (5.5° C) above design intercooler
FUEL PRESSURE water inlet temperature
Alarm
The minimum fuel pressure at the regulator
Alarm 15° F (11° C) above design intercooler water inlet
(from Tech Data Book) temperature
Shutdown 85% of the alarm value
Shutdown 20° F (17° C) above design intercooler water inlet
temperature
NOTES: INTAKE MANIFOLD PRESSURE
1Alarm and shutdown functionality provided by ESM. Contact Waukesha Sales Engineering
2Alarm functionality provided by Auxiliary Systems Interface. MAIN BEARING TEMPERATURE
Shutdown 250° F (121° C)
OVERSPEED
Shutdown Not to exceed 10% over governed speed.
FUEL PRESSURE
The minimum fuel pressure at the
Alarm regulator (from Tech Data Book)
Shutdown 85% of the alarm value
NOTES:
1
Waukesha Power Systems Engomatic® Control Model 1105,
1105A, or equivalent pressure/temperature shutdown system is
recommended when jacket water temperature exceeds 210° F
(99°C).
2
Do not revise any values on this page without revising the same
values on the “AT General Operating Limits” and “Diagram Tempera-
ture/Pressure Test Points and Pump Settings” S-sheets for the 8L,
12V, and/or 16VATGL engines.
3
Waukesha Power Systems Control is required to have an 8 second
delay after engine start.

Page 2 of 8 WAUKESHA ENGINE

DRESSER, INC.
WAUKESHA, WI 53188-4999
 Service Bulletin No. 1-2620F
VHP VHP (continued)
1
JACKET WATER OUTLET TEMPERATURE INTAKE MANIFOLD TEMPERATURE2
Standard Cooling System
Normal Up to 10° F (5.5° C) above design
intercooler water inlet temperature
180° F (82° C) for continuous rating
Normal
200° F (93° C) for intermittent rating 15° F (8.5° C) above design intercooler
Alarm
10° F (5.5° C) above water inlet temperature2
Alarm
normal/design temperature2 20° F (11° C) above design intercooler
Shutdown
20° F (11° C) above water inlet temperature2
Shutdown
normal/design temperature2 INTAKE MANIFOLD PRESSURE
Waukesha Power Systems – Std. Contact Waukesha Sales Engineering
Alarm 205° F (96° C) MAIN BEARING TEMPERATURE
Shutdown 215° F (102° C) Shutdown 250° F (121° C)
Note: Alarm and shutdown differ because of the WED Code 6010, Eutectic alloy melting point is 252° F
10% overload for 2 hours in 24. Oil pressure switch pressure setting is 20 Psig5
Elevated Temperature Solid Water Cooling System OVERSPEED
(All Applications)
Shutdown 10% over governed speed2
Normal 210° – 235° F (99° – 113° C)
for solid water Waukesha Power System
5° F (3° C) above Shutdown 10–15% over governed speed,
Alarm not to exceed 1320 RPM
normal/design temperature2,3
When setting engine overspeed
10° F (5.5° C) above shutdown, do not exceed the lesser of
Shutdown
normal/design temperature2,3 engine or driven equipment’s speed lim-
Caution
Ebullient Water Cooling System (All Applications) its. To avoid equipment damage, consult
the driven equipment manufacturer
Normal 212° – 250° F (100 – 121° C) for maximum overspeed value.
Alarm See Note 4 FUEL PRESSURE
Shutdown See Note 4 The minimum fuel pressure at the
Alarm regulator (from Tech Data Book)
LUBE OIL HEADER TEMPERATURE
Shutdown 85% of the alarm value
Normal 180° F (82° C)
Alarm 195° F (91° C)2 NOTES:
1For
Shutdown 205° F (96° C) 2 engines equipped with ESM, refer to ECU calibration and
appropriate S-08312-XX sheet to determine limits of operating
Naturally Aspirated Standby Rating with
auxiliary cooling connected to jacket cooling. conditions.
2
Alarm 200° F (93° C) Alarm and shutdown functionality provided on engines equipped
with ESM.
Shutdown 205° F (96° C) 3
Waukesha Power Systems Engomatic® Control Model 1105,
WED Code 1107 1105A, or equivalent shutdown system is recommended when
Alarm 200° F (93° C) jacket water temperature exceeds 210 ° F (99° C).
205° F (96° C)
4Waukesha
Shutdown Power Systems Engomatic® Control Model 1106,
LUBE OIL HEADER PRESSURE 1106A, or equivalent shutdown system is recommended for
ebulliently cooled engines.
6 and 12 Cylinder Models 5
Waukesha Power Systems Control is required to have an 8 second
Normal 50 – 60 psi (345 – 415 kPa) delay after engine start.
Alarm 35 psi (241 kPa)2, 5
Shutdown 30 psi (207 kPa)2, 5
16 Cylinder Models
Normal 30 – 50 psi (207 – 345 kPa)
Alarm 30 psi (207 kPa)5
Shutdown 25 psi (172 kPa)5
LUBE OIL FILTER DIFFERENTIAL PRESSURE
Normal 2 – 15 psi (14 – 103 kPa differential)
Alarm 15 psi (103 kPa differential)2

WAUKESHA ENGINE
DRESSER, INC.
Page 3 of 8
WAUKESHA, WI 53188-4999
Service Bulletin No. 1-2620F
16V150LTD F1197
JACKET WATER (HT) OUTLET TEMPERATURE JACKET WATER OUTLET TEMPERATURE
Normal 99° C (210° F) Normal 180° F (82° C)
Alarm 105° C (220° F) 1 Alarm 200° F (93° C)
Shutdown 110° C (230° F) 1 Shutdown 210° F (99° C)
LUBE OIL HEADER TEMPERATURE LUBE OIL HEADER TEMPERATURE

Normal 88° C (190° F) Normal 160° – 210° F (71° – 99° C)

Alarm 93° C (199° F) Alarm 225° F (107° C)
Shutdown 96° C (204° F) Shutdown 235° F (113° C)
LUBE OIL HEADER PRESSURE LUBE OIL HEADER PRESSURE
Rated Speed Normal 40 – 50 psi (276 – 345 kPa)
Idle (1500 or 1800 rpm)
Alarm 15 psi (103 kPa)
Normal 2.4 bar (35 psi) 3.6 bar (52 psi)
Shutdown 10 psi (69 kPa)
Alarm 2.0 bar (29 psi)1 2.8 bar (40 psi)1 INTAKE MANIFOLD TEMPERATURE
Shutdown 1.6 bar (24 psi)1 2.4 bar (35 psi)1 Not Applicable
INTAKE MANIFOLD TEMPERATURE INTAKE MANIFOLD PRESSURE

Normal Up to 10° C (9° F) above design Contact Waukesha Sales Engineering

intercooler water inlet temperature. MAIN BEARING TEMPERATURE
11° C (20° F) above design intercooler water Contact Waukesha Sales Engineering
Alarm
inlet temperature1.
OVERSPEED
14° C (25° C) above design intercooler water
Shutdown Shutdown Not to exceed 15% over governed speed
inlet temperature1.
INTAKE MANIFOLD PRESSURE
Contact Waukesha Sales Engineering.
F817
JACKET WATER OUTLET TEMPERATURE
GAS PRESSURE AT GAS TRAIN INLET
Normal 180° F (82° C)
Normal 0.05 – 0.09 bar (0.75 – 1.25 psi)
Alarm 195° F (91° C)
OVERSPEED
Shutdown 205° F (96° C)
50 Hz: 1750 rpm
Shutdown LUBE OIL HEADER TEMPERATURE
60 Hz: 1980 rpm
FUEL PRESSURE Normal 160° – 230° F (71° – 110° C)
The minimum fuel pressure at the Alarm 240° F (116° C)
Alarm
regulator (from Tech Data Book)
Shutdown 250° F (121° C)
Shutdown 85% of the alarm value
LUBE OIL HEADER PRESSURE
Normal 35 – 45 psi (241 – 310 kPa)
NOTES:
1
Alarm and shutdown functionality provided by ESM. Alarm 15 psi (103 kPa)
Shutdown 10 psi (69 kPa)
INTAKE MANIFOLD TEMPERATURE
Not Applicable
INTAKE MANIFOLD PRESSURE
Contact Waukesha Sales Engineering
OVERSPEED
Shutdown Not to exceed 15% over governed speed

Page 4 of 8 WAUKESHA ENGINE

DRESSER, INC.
WAUKESHA, WI 53188-4999
 Service Bulletin No. 1-2620F
VGF VGF (continued)
JACKET WATER OUTLET TEMPERATURE LUBE OIL HEADER PRESSURE
Standard Cooling System F18/H24 Models
Engines less than or equal to 176 BMEP
Normal 67 – 83 psi (462 – 572 kPa)
180° F (82° C) for continuous rating
Normal
200° F (93° C) for intermittent rating Alarm 40 psi (276 kPa)2

Alarm 10° F (5.5° C) above Shutdown 35 psi (241 kPa)2

normal/design temperature
L36/P48 Models
20° F (11° C) above
Shutdown
normal/design temperature Normal 66 – 82psi (455 – 565 kPa)

Waukesha Power Systems – Std Alarm 40 psi (276 kPa)2

Alarm 205° F (96° C) Shutdown 35 psi (241 kPa)2
Normal 215° F (102° C) INTAKE MANIFOLD TEMPERATURE
Alarm and Shutdown differ because of With Standard Intercooler Water Temperatures
Shutdown
the 10% overload for 2 hours in 24 of 85° – 130° F (29° – 54° C)
GL/GLD/GSI/GSID Engines
Elevated Temperature, Solid Water Cooling System with less than or equal to 176 BMEP
Engines less than or equal to 176 BMEP
– All Applications Normal Up to 10° F (5.5° C) above design
intercooler water inlet temperature
210° – 265° F (99° – 130° C)
Normal
for solid water Alarm 15° F (8.5° C) above design intercooler
water inlet temperature
5° F (3° C) above
Alarm 20° F (11° C) above design intercooler
normal/design temperature1 Shutdown
water inlet temperature
10° F (5.5° C) above With Elevated Intercooler Water Temperatures
Shutdown
normal/design temperature1 of 131° – 176° F (55° – 80° C)
Elevated Temperature, Solid Water Cooling System
Normal Up to 10° F (5.5° C) above design
200 BMEP Engines – All Applications intercooler water inlet temperature
Normal 210° F (99° C) solid water 10° F (5.5° C) above design intercooler
Alarm
10° F (5.5° C) above water inlet temperature
Alarm
normal/design temperature1 Shutdown 15° F (8.5° C) above design intercooler
water inlet temperature
15° F (8.5° C) above
Shutdown With Elevated Intercooler Water Temperatures
normal/design temperature1
of 158° – 176° F (70° – 80° C)
LUBE OIL HEADER TEMPERATURE 200 BMEP GLD Engines Only
Jacket Water Temperature of 180° F (82° C) and Up to 10° F (5.5° C) above design
Normal
Intercooler Temperature of 85° – 130° F (29° – 54° C) intercooler water inlet temperature
Engines less than or equal to 176 BMEP – All Models 10° F (5.5° C) above design intercooler
Alarm
Normal 170° – 195° F (76.5° – 90.5° C) water inlet temperature

Alarm 200° F (93° C) Shutdown 15° F (8.5° C) above design intercooler

water inlet temperature
Shutdown 205° F (96° C) INTAKE MANIFOLD PRESSURE
Jacket Water Temperature of 265° F (129° C) and Intercooler Contact Waukesha Sales Engineering
Temperature of 85° – 130° F (29° – 54° C)
MAIN BEARING TEMPERATURE
Engines less than or equal to 176 BMEP – All Models
Contact Waukesha Sales Engineering
Normal 170° – 195° F (76.5° – 90.5° C)
OVERSPEED
Alarm 200° F (93° C)
Shutdown Not to exceed 15% over governed speed.
Shutdown 205° F (96° C) FUEL PRESSURE
Jacket Water Temperature of 210° F (99° C) and The minimum fuel pressure at the
Intercooler Temperature of 158° – 176° F (70° – 80° C) Alarm regulator (from Tech Data Book)
200 BMEP GLD Engines Only
Shutdown 85% of the alarm value
Normal 190° F (88° C)
Alarm 200° F (93° C) NOTES:
Shutdown 205° F (96° C) 1Waukesha Power Systems Engomatic® Control Model 1105,

1105A, or equivalent pressure/temperature shutdown system is

recommended when jacket water temperature exceeds 210 ° F
(99° C).
2
Waukesha Power Systems Control is required to have an 8 second
delay after engine start.
3
Waukesha Power Systems Control is required to have a 5 minute
delay after engine start for all applications that run with (less than or
equal to) 125° F intercooler water.

WAUKESHA ENGINE
DRESSER, INC.
Page 5 of 8
WAUKESHA, WI 53188-4999
Service Bulletin No. 1-2620F
VSG
JACKET WATER OUTLET TEMPERATURE
Normal 180° F (82° C)
Alarm 200° F (93° C)
Shutdown 210° F (99° C)
LUBE OIL HEADER TEMPERATURE
with a Jacket Water Temperature of 180° F (82° C)
F11G Model
Normal 205° F (96° C)
Alarm 215° F (102° C)
Shutdown 225° F (107° C)
F11GSI Model
Normal 190° F (89° C)
Alarm 200° F (93° C)
Shutdown 210° F (99° C)
LUBE OIL HEADER PRESSURE
Normal 65 – 87 psi (448 – 600 kPa)
Alarm 40 psi (276 kPa)
Shutdown 30 psi (207 kPa)
INTAKE MANIFOLD TEMPERATURE (GSI)

Normal Up to 15° F (8.5° C) above design

intercooler water inlet temperature

Alarm 20° F (11° C) above design intercooler

water inlet temperature

Shutdown 25° F (14° C) above design intercooler

water inlet temperature
INTAKE MANIFOLD PRESSURE
Contact Waukesha Sales Engineering
MAIN BEARING TEMPERATURE
Contact Waukesha Sales Engineering
OVERSPEED
Not to exceed 15% over
Shutdown
governed speed.
FUEL PRESSURE
The minimum fuel pressure at the
Alarm
regulator (from Tech Data Book)
Shutdown 85% of the alarm value

Page 6 of 8 WAUKESHA ENGINE

DRESSER, INC.
WAUKESHA, WI 53188-4999
 Service Bulletin No. 1-2620F
GENERATOR ALARMS AND SHUTDOWNS
KATO CLASS F INSULATION GENERATORS – See Kato LEROY SOMER CLASS H INSULATION GENERATORS
drawing for setpoint recommendations on standby units Prime Power (105° C) Generator Winding
Generator Winding (Prime Power)
Alarm 194° F (90° C)
Alarm 311° F (155° C)
Shutdown 203° F (95° C)
Shutdown 329° F (165° C)
Prime Power (105° C) Generator (Sleeve or Roller) Bearing
Generator Bearing
Alarm 194° F (90° C)
Alarm 185° F (85° C)
Shutdown 203° F (95° C)
Shutdown 203° F (95° C)
Standby Power (130° C) Generator Winding
MARATHON ELECTRIC MAGNAMAX DVR GENERATORS
Alarm 392° F (200° C)
Prime Power (105° C) Generator Winding
Shutdown 401° F (205° C)
Alarm 293° F (145° C)
Standby Power (130° C) Generator (Sleeve or Roller) Bearing
Shutdown 311° F (155° C)
Alarm 392° F (200° C)
Prime Power (105° C) Generator Bearing
Shutdown 401° F (205° C)
Alarm 230° F (110° C)
Class H is Leroy Somer standard. Only class
Shutdown 248° F (120° C) H settings should be used for the LSA461 to
Comments: LSA51 low voltage generators. These values
Standby Power (130° C) Generator Winding are ISO standard and should be used as maxi-
Alarm 338° F (170° C) mums only.

Shutdown 356° F (180° C) LEROY SOMER NA (MAGNETEK)

CLASS F INSULATION GENERATORS
Standby Power (130° C) Generator Bearing Generator Winding (Prime Power)
Alarm 230° F (110° C) Alarm 311° F (155° C)
Shutdown 248° F (120° C) Shutdown 329° F (165° C)
Prime or Standby Generator Winding Generator Bearing
Temperature Switch (GWTS)
Alarm 185° F (85° C)
Shutdown 302° ± 9° F (150° ± 5° C) Switch N.O. or N.C.
Shutdown 194° F (90° C)
GWTS is not located in the winding a lot like
the RTD or thermocouple so a lower tempera-
Comments ture device is used. No alarm GWTS is
available at this time.
LEROY SOMER CLASS F INSULATION GENERATORS
Prime Power (105° C) Generator Winding
Alarm 302° F (150° C)
Shutdown 311° F (155° C)
Prime Power (105° C) Generator (Sleeve or Roller) Bearing
Alarm 194° F (90° C)
Shutdown 203° F (95° C)
Standby Power (130° C) Generator Winding
Alarm 347° F (175° C)
Shutdown 356° F (180° C)
Standby Power (130° C) Generator (Sleeve or Roller) Bearing
Alarm 239° F (115° C)
Shutdown 248° F (120° C)

WAUKESHA ENGINE
DRESSER, INC.
Page 7 of 8
WAUKESHA, WI 53188-4999
Service Bulletin No. 1-2620F
NEWAGE GENERATORS
GENERATOR WINDING
INSULATION CLASS WARNING SHUTDOWN
°F °C °F °C
A 194 90 230 110
E 230 110 266 130
B 248 120 284 140
F 284 140 320 160
H 338 170 374 190

COMMENTS: These values are recommended by the British Standard BS4999 Part 72, which Newage Int. follow.

Page 8 of 8 WAUKESHA ENGINE

DRESSER, INC.
WAUKESHA, WI 53188-4999