Instruction/ maintenance manual of the product 004373-1, 004626-0 Generac
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POWER SYSTEMS, INC. ® ® PO WER SY STEMS, INC. ® Owner’ s Man ual Liquid-cooled, Prepac kaged Standb y Generators Models: 004373-1 (40 kW/Single-phase w/ 200 Amp T ransfer Switch) 004626-0 (40 kW/.
Generac ® Pow er Systems, Inc. I NTRODUCTION Thank you for purchasing the Guardian product line by Generac P ower Systems. This model is a compact, high performance, liquid- cooled, engine - driven gen- erator designed to automatically supply electrical power to operate critical loads during a utility power failure.
T able of Contents Guardian Liquid-cooled 40 kW Generator Generac ® Pow er Systems, Inc. 1 Introduction ......................Inside Front Cover Read This Manual Thoroughly ......................IFC Contents ..........................................
2 Generac ® Pow er Systems, Inc. Study these SAFETY RULES carefully before installing, operating or servicing this equipment. Become familiar with this Owner’s Manual and with the unit. The gen- erator can operate safely , efficiently and reliably only if it is properly installed, operated and maintained.
Generac ® Pow er Systems, Inc. 3 • Inspect the generator regularly , and promptly repair or replace all worn, damaged or defective parts using only factory-approved parts. • Before performing any maintenance on the generator , disconnect its battery cables to prevent accidental start -up.
4 Generac ® Pow er Systems, Inc. 1.1 U N P A CKI NG/I NSP E CTION After unpacking, carefully inspect the contents for damage. • This standby generator set has been factory installed in an all-weather , metal enclosure that is intended exclusively for outdoor installation.
1.5 MAI N CI RCU IT B R EAKER The generator’s main circuit breaker is included with the unit as shipped from the factory . The breaker for each unit is described as follows: 1.
6 Generac ® Pow er Systems, Inc. 1.7 .1.1 Generator and Load Compatibility The generator must be fully compatible with the rated voltage, number of phases and frequency of the con- nected electrical loads. The generator , connected elec- trical devices, or both, can be damaged if voltage, num- ber of phases and frequency are not compatible.
1.9 ENGI N E OI L R E COMM EN D A TIONS The unit has been filled with 15W -40 engine oil at the factory . Use a high- quality detergent oil classified “F or Service CC, SD , SE or SF .” Detergent oils keep the engine cleaner and reduce carbon deposits.
8 Generac ® Pow er Systems, Inc. If an open bottom is used, the engine-generator is to be installed over non-combustible materials and should be located such that combustible materials are not capable of accumulating under the generator set.
Generac ® Pow er Systems, Inc. 9 Figure 2.1 – Basic Standby Electric System 2.2 EM ERGENCY CIRCU IT ISOLA TION M E THOD This prevents overloading the generator by keeping elec- trical loads below the wattage/amperage capacity of the generator .
10 Generac ® Pow er Systems, Inc. 2.7 B A T TER Y I NS T ALLA TION Standby generators installed with automatic trans- fer switches will crank and start automatically when normal (utility) source voltage is r emoved or is below an acceptable preset level.
2.8.1 P RIOR T O I NITIAL ST ART -U P Prior to initially starting the generator , it must be properly pr epared for use. Any attempt to crank or start the engine before it has been pr operly serviced with the recommended types and quanti- ties of engine fluids (oil, coolant, fuel, etc.
12 Generac ® Pow er Systems, Inc. 3.1 C ONTROL CONS OLE COMPON ENT S The components of a liquid- cooled generator control console (Figure 3.1) are as follows: Figure 3.1 – Control Console 3.1.1 AC V OL TM ETER The voltmeter displays generator AC output voltage dur- ing operation.
3.2.2 “ OF F ” POSITION This switch position shuts down the engine. This posi- tion also prevents operation. 3.2.3 “ MAN U AL ” POSITION Set the switch to Manual to crank and start the engine. Transfer to standby power will not automatically occur unless there is a utility failure.
Figure 3.2 – Engine Block Heater Refer to applicable wiring diagram(s) and electrical schematic(s) at the back of this manual for wiring con- nections. 3.6 WEEKL Y EXERCISE CY CLE The generator will start and exercise once every seven days. During this weekly exercise, the unit runs for approximately 20 minutes and shuts down.
Figure 4.1 – Oil Dipstick and Fill 4.2 CHANGI NG THE ENGI N E OIL AN D F I L TER 4.2.1 Eng ine Oil Recommendations Use oil of API Service Class SG, SH or SJ . The recommended oil grade for the engine is SAE 15W -40. NOTE: The unit is supplied with “break-in” oil.
16 Generac ® Pow er Systems, Inc. Figure 4.3 – Engine Air Cleaner See the “Service Schedule,” Section 4.12, P age 19, for rec- ommended air cleaner m aintenance. 4.4 SP AR K P L UGS Reset the spark plug gap or replace the spark plugs as necessary .
Generac ® Pow er Systems, Inc. 17 4.6 COOLING SY STEM Air intake and outlet openings in the generator compart- ment must be open and unobstructed for continued prop- er operation. This includes such obstructions as high grass, weeds, brush, leaves and snow .
18 Generac ® Pow er Systems, Inc. 4.1 0.2 Rodent Protection The intrusion of rodents into the generator set can cause a wide range of problems, from failure of the unit to start, to personal injury and, in extreme circum- stances, short circuit or fire.
Generac ® Pow er Systems, Inc. 19 Section 4 — Maintenance Guardian Liquid-cooled 40 kW Generator 4.1 2 SERVICE S CH EDU LE A TTENTION: It is r ecommended that all service work be performed by your nearest Generac/Guar dian Authorized Dealer .
20 Generac ® Pow er Systems, Inc. Section 5 — T roubleshooting Guardian Liquid-cooled 40 kW Generator 5.1 TROU B LE SHOO TI NG GU I DE P ROB LEM CAUSE C OR R E CTION The engine will not crank. 1. F use blown 1. Replace fuse. 2. Loose, corroded or defective 2.
Generac ® Pow er Systems, Inc. 21 A AM VM L1 15 12 3 5 6 2 4 1 B A 17 1 13 2 16 5 7 D 14 11 9 CAP E 3 4 10 TO LOWER PANEL (CONNECTOR CP) U J B T S W V H X O G A N Q M E K F C D 4 5 10 12 3 TO ENGINE .
ACTUATOR BROWN ORANGE YELLOW BLACK N.C. TO GOVERNOR PSW HM CP EH TS1, TS2 - TERMINAL STRIPS LPC - LOWER PANEL CONNECTION TS2 R1 - RESISTOR, FIELD BOOST VM - METER, AC OUTPUT VOLTAGE AVR - AUTOMATIC VO.
Generac ® Pow er Systems, Inc. 23 B J X W S T V U A O N M Q F K G H E C D 5 4 3 6 CAP L1 8 9 1 2 10 11 12 7 PSW - SWITCH, PHASE SELECTOR SW2 - SWITCH, SET EXERCISE SW1 - SWITCH, AUTO/OFF/MANUAL TR1 -.
24 Generac ® Pow er Systems, Inc. Section 6 — Electrical Data (Model No. 004626-0) Guardian Liquid-cooled 40 kW Generator Wiring Diagram (Control P anel) – Drawing No.
Generac ® Pow er Systems, Inc. 25 Section 6 — Electrical Data (Model Nos. 0043 73-1 & 0042 62-0) Guardian Liquid-cooled 40 kW Generator Electrical Schematic — Engine (4.
26 Generac ® Pow er Systems, Inc. Section 6 — Electrical Data (Model Nos. 0043 73-1 & 0042 62-0) Guardian Liquid-cooled 40 kW Generator Wiring Diagram — Engine (4.
Generac ® Pow er Systems, Inc. 27 Section 6 — Electrical Data (Model No. 0043 73-1) Guardian Liquid-cooled 40 kW Generator Electrical Schematic – Stepper Motor – Drawing No.
J S15 Q N 00 O P 178 K M L S1 23 N2 N1 T1 S R T V U T2 W X 194 G H F C B A D E 6 S16 2 1 57 58 S3 N1 N2 T1 T2 23 194 CUSTOMER CONNECTION 120/240V. 1-PHASE E1 TO E3 240V.
Generac ® Pow er Systems, Inc. 29 CUSTOMER CONNECTION BRUSH UNITS 44 33 22 E1 CB2 E3 CT1 0 11 S15 0 H S16 G A N 57 58 CT2 O S3 00 M 6 DPE S1 AS 6 E TP Q 2 K 5 5 F RED 4 4 C AR 1 1 D T2 V 23 W 194 X T1 U N2 T N1 S 183 B 178 J TS3 TS3 TS4 TS4 NB NB 120/240-V.
30 Generac ® Pow er Systems, Inc. DEUTSCH 10 11 12 9 3 2 14 7 8 6 5 T F R S D P O Q U G W V H C M K L X B J N PIN E A 36 52 53 58 54 55 56 57 35 59 4 1 21 42 54 41 61 9 12 60 43 23 29 26 8 60 61 28 2.
Generac ® Pow er Systems, Inc. 31 ITEM P ART NO . QTY . DESCRIPTION 1 0D1523 1 P ANEL BTM & BACK CONTROL P ANEL 2 0D1521A 1 CONTR OL P ANEL, FRONT W/ SILK SCREEN 3 0D1522 2 P ANEL,SIDE COVER CONT.
32 Generac ® Pow er Systems, Inc. 40 36 21 38 61 51 51 58 58 60 33 34 7 11 53 54 55 56 35 53 54 55 56 4 18 48 49 43 23 29 26 28 27 25 24 44 45 46 47 18 48 49 22 30 31 32 2 42 1 41 59 8 59 58 9 58 12 .
Generac ® Pow er Systems, Inc. 33 ITEM P AR T NO . QTY . DESCRIPTION 1 0D7397 1 PNL BTM & BA CK CNTL PNL 04626 2 0D1521A 1 CONTROL P ANEL FRONT W/ SILK SCREEN 3 0D1522 1 P ANEL SIDE COVER CONTR O.
14 13 3 12 1 11 15 4 9 16 2 11 15 5 9 17 "A" "A" 22 21 3 14 13 12 23 24 19 20 CARB. ARM (REF.) SECURE WIRE HARNESS WITH TIE WRAP AS SHOWN. WIRE HARNESS ITEM (18) NEOPRENE COATING EXISTING ENGINE HARDWARE 15 34 Generac ® Pow er Systems, Inc.
ITEM P ART NO . QTY . DESCRIPTION 1 0C3250 1 BASE, MOUNTING ASSEMBL Y , 4.3L (DIRECT -COUPLED) 3 055414 1 LUG SLDLSS #2-#8 X 17/64 CU 5 022129 2 W ASHER LOCK M8-5/16 6 045771 2 NUT HEX M8-1.
36 Generac ® Pow er Systems, Inc. 12 40 40 24 42 6 31 32 35 37 34 34 20 23 45 43 40 22 39 7 8 36 13 5 10 11 33 19 31 4 35 26 34 3 34 14 30 28 44 27 9 1 21 43 25 46 40 41 26 17 34 16 38 15 47 29 18 Section 7 — Exploded Views and P ar ts Lists (Model Nos.
Generac ® Pow er Systems, Inc. 37 ITEM P ART NO .QTY . DESCRIPTION 1 0A9046 1 ENGINE 4.3L GM 3 0A4239 1 PULLEY CRANKSHAFT 4 0A4240 1 PULLEY WA TER PUMP 5 0A5640 1 SP ACER F AN 50MM (35 kW UNITS ONL Y.
38 Generac ® Pow er Systems, Inc. Section 7 — Exploded Views and P ar ts Lists (Model Nos. 0043 73-1 & 00462 6-0) Guardian Liquid-cooled 40 kW Generators Engine Parts – Drawing No.
Generac ® Pow er Systems, Inc. 39 Section 7 — Exploded Views and P ar ts Lists (Model Nos. 0043 73-1 & 00462 6-0) Guardian Liquid-cooled 40 kW Generators Engine Parts – Drawing No. 0D6980 ITEM P ART NO . QTY . DESCRIPTION 1 0A9046 1 ENGINE 4.
40 Generac ® Pow er Systems, Inc. TORQUE ITEM #6 TO 24 FT/LB AND USE NOTE: THREAD LOCKING COMPOUND (T-13717). To Engine Flywheel 22 adjustment. Do not rotate engine during this Caution: 1/2 to 3/4 turn and tighten nut.
Generac ® Pow er Systems, Inc. 41 Section 7 — Exploded Views and P ar ts Lists (Model Nos. 0043 73-0 & 00462 6-0) Guardian Liquid-cooled 40 kW Generators Generator – Drawing No. 0D53 33-A ITEM P ART NO . QTY . DESCRIPTION 1 051768 6 SCREW HHC M12-1.
ITEM P ART NO . QTY . DESCRIPTION 1 0C3594 10 ASSEMBL Y M6 HINGE 3 0A3359 40 SCREW BHSC M6-1.0 X 16 SS 4 0A3360 40 SHAKEPROOF INT M6 SS 5 0C2522 (A) 5 DOOR SMALL STD .
Generac ® Pow er Systems, Inc. 43 29 18 19 20 12 11 12 13 9 7 8 16 1 10 6 5 4 15 23 22 24 21 27 10 17 14 "A" To "A" 10 30 22 27 Section 7 — Exploded Views and P ar ts Lists (Model Nos. 0043 73-1 & 00462 6-0) Guardian Liquid-cooled 40 kW Generators Radiator – Drawing No.
ITEM P ART NO . QTY . DESCRIPTION 1 064945 1 GASKET CARBURET OR AD APT OR 2 0A4120 1 AD APT OR CARBURET OR W/INLET 3 033212 4 SCREW HHC 5/16-18 X 1-1/4 G5 4 022129 4 W ASHER LOCK M8-5/16 5 052865 1 CARBURET OR GASKET 6 0A7631 1 CARB .
Generac ® Pow er Systems, Inc. 45 ITEM P ART NO . QTY . DESCRIPTION 1 064945 1 GASKET CARBURET OR ADAPT OR 2 0A4120 1 AD APT OR CARBURET OR W/INLET 3 033212 4 SCREW HHC 5/16-18 X 1-1/4 G5 4 022129 4 .
46 Generac ® Pow er Systems, Inc. Section 7 — Exploded Views and P ar ts Lists Guardian Liquid-cooled 40 kW Generators Regulator – Drawing No. 0C2 77 6-C ITEM P ART NO . QTY . DESCRIPTION 1 065907 1 SUPPOR T SOLENOID NA T GAS 2 026307 3 ELBO W 90 DEG STREET 3/4 3 076691 1 NIPPLE PIPE 3/4NPTX4.
Generac ® Pow er Systems, Inc. 47 ITEM P AR T NO . QTY . DESCRIPTION 1 065907 1 SUPPORT SOLENOID NA T GAS 2 026307 3 ELBOW 90 DEG STREET 3/4 3 076691 1 NIPPLE PIPE 3/4 NPT X 4.
ITEM P AR T NO . QTY . DESCRIPTION 1 080723 1 HOSE CONNECTION TEE 1.75-.62 2 035685 2 CLAMP , HOSE #28 1.32-2.25 3 057822 4 CLAMP , HOSE #8 .53-1.00 4 084918C 1 HEA TER, ENGINE 1800W 120V . *084918D 1 HEA TER, ENGINE 2000W 240V . 5 050967 1 HOSE, 5/8" I.
Generac ® Pow er Systems, Inc. 49 ITEM P ART NO . QTY . DESCRIPTION 2 058665 1 BA TTERY 12VDC 90-AH 27F (OPTIONAL) 3 061902 1 HOLD DO WN BA TTER Y 4 059473 1 HOLD DO WN BA TTER Y 5 038805H 1 CABLE BA TTER Y BLACK #1 X 23.00 6 038804N 1 CABLE BA TTER Y RED #1 X 15.
50 Generac ® Pow er Systems, Inc. 40 44 3 44 45 1 2 44 41 4 11 12 29 30 3 58 33 43 44 45 41 44 43 32 31 10 13 43 44 41 58 32 32 57 53 32 59 54 33 46 55 29 30 61 70 43 33 60 44 40 6 44 17 41 15 36 34 35 16 14 18 36 BOTTOM OF CONTROL PANEL Section 7 — Exploded Views and P ar ts Lists (Model Nos.
Generac ® Pow er Systems, Inc. 51 ITEM P ART NO . QTY . DESCRIPTION 1 068115 1 LOWER P ANEL 15 2 0D5489 1 COVER LO WER CONNECTION BO X 3 040479 4 VIBRA TION MOUNT 1.
52 Generac ® Pow er Systems, Inc. Section 7 — Exploded Views and P ar ts Lists (Model No 004626-0) Guardian Liquid-cooled 40 kW Generators Exhaust Muffler – Drawing No.
Generac ® Pow er Systems, Inc. 53 ITEM P ART NO . QTY . DESCRIPTION 1 059902A 1 CAP RAIN 2.50 / 2.69 2 0C9641 1 TUBE STRAIGHT 'A' GR OUP 3 0D4208 1 MUFFLER CA T AL YST 4.3L 4 0D5061 4 MOUNTING BAND A-GRP CA T AL YST 5 0C4126 2 BRA CKET MUFFLER MOUNTING 6 0D5787 1 TUBE ELBO W 90 DEG 2.
Section 7 — Exploded Views and P ar ts Lists (Model No. 0043 73-1) Guardian Liquid-cooled 40 kW Generators Generator – Drawing No. 0D5 786 ITEM P ART NO . QTY . DESCRIPTION 1 059902A 1 CAP RAIN 2.50 / 2.69 2 0C9641 1 TUBE STRAIGHT 'A' GROUP 3 0C9650 1 MUFFLER 2-1/2" INLET/OUTLET 4 0C4114A 2 CLAMP BAND MUFFLER 6.
Generac ® Pow er Systems, Inc. 55 Section 8 — Notes Guardian Liquid-cooled 40 kW Generators.
56 Generac ® Pow er Systems, Inc. LEFT SIDE VIEW TOP OR PLAN VIEW OIL DRAIN 1/2" N.P.T. FEMALE NOTE 6 NOTE 2 110 [4.33"] TYP. 570 [22.44"] TYP. MOUNTING HOLES Ø 13.5 [ Ø 0.53"] NOTE 7 STUB-UP AREA SEE NOTE 8 AND CHART 839 [33.01"] TYP 49 [1.
Generac ® Pow er Systems, Inc. 57 Section 9 — Installation Drawings Guardian Liquid-cooled 40 kW Generators Installation Drawing – Drawing No. 0D53 35 REAR VIEW 1160 [45.67"] 965 [37.99"] 877 [34.51"] BATTERY TRAY INSIDE DIMENSIONS: 178 X 342.
Part No. 0D4963 Re vision 1 (12/20/01) Printed in U.S.A. Section 1 0 – Warranty Guardian Liquid-cooled 40 kW Generators GEN ERAC PO WER S YS TEMS "T WO YEAR" S T AN D AR D W AR R ANT Y FOR.
An important point after buying a device Generac 004373-1, 004626-0 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Generac 004373-1, 004626-0 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Generac 004373-1, 004626-0 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Generac 004373-1, 004626-0 you will learn all the available features of the product, as well as information on its operation. The information that you get Generac 004373-1, 004626-0 will certainly help you make a decision on the purchase.
If you already are a holder of Generac 004373-1, 004626-0, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Generac 004373-1, 004626-0.
However, one of the most important roles played by the user manual is to help in solving problems with Generac 004373-1, 004626-0. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Generac 004373-1, 004626-0 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center