090898 INSTRUCTION MANUAL with ILLUSTRATED PARTS LIST for BLOCK HEATER Part Number 287632-1 (120 VAC) and 287632-2 (240 VAC) Hobart Brothers Company Ground Power Division Troy, Ohio 45373 U.S.A.
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1. General CAUTION Do not run engine while this heater is operating. This manual covers a Water Heater Kit, Part Numbers 287632-1 and -2, manufactured by Hobart Brothers Company, Ground Power Division, Troy, Ohio 45373, U.S.A. Refer to Figure 1 for illustration. The water heater kit is installed inside the enclosure of the generator set, and is connected to the cooling system of the diesel engine which drives the unit. Its purpose is to keep the coolant warm when the engine is shut down for extended periods of time in cold weather, and thus permit the engine to start more quickly. 2. Description The heater unit is mounted to the generator frame with a bracket and attaching hardware as illustrated in Figure 1. Hoses, clamps, and fittings connect the heater to the engine s cooling system: heater input to the engine water inlet from the engine block; heater output to the engine water pump housing. The heater element is connected to 120 VAC for 287632-1 or 240 VAC for 287632-2, 50 or 60 cycle line current by plugging an extension cord into the weatherproof inlet (supplied with heater) that is mounted on the generator enclosure on the left side of the front canopy. A thermostat turns the heater element ON at 100º F and OFF at 120º F. Heated coolant is circulated throughout the cooling system by a thermal siphoning action. Mounted low in the system, a head pressure is maintained at the heater s intake and a simple one-way valve in the heater unit insures the direction of coolant flow. CAUTION Drain the engine coolant system before working on the heater. Afterwards, refill the cooling system and bleed at highest point to remove any air lock. CAUTION Do not operate this heater while the engine is running. 09/08/98 Page 3
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3. Customer Service If you have any questions concerning your Hobart Brothers Ground Power equipment, immediately contact our service department by mail, telephone, or FAX. Write: Hobart Brothers Company Ground Power Division Service Department Troy, Ohio 45373 U.S.A. Telephone: (937) 332-5060 for Service Assistance (937) 332-5050 for Parts Assistance FAX: (937) 332-5121 4. Manufacturer s Codes a. Explanation of Manufacturer s (Vendor) Code List The following list is a compilation of vendor codes with names and addresses for suppliers of purchased parts listed in this publication. The codes are in accordance with the Federal Supply Codes for Manufacturer s Cataloging Handbook H4-1, (CAGE CODES) and are arranged in numerical order. Vendor codes are inserted in the nomenclature column of the parts list directly following the item name and description. In case a manufacturer does not have a code, the full name of the manufacturer will be listed in the nomenclature column. Code Vendor s Name & Address 06991 The Budd Co. (Temro & Phillips Div) 9700 W. 74TH ST. Eden Prairie, MN 55344-3515 5. EFF (Effective) Column This column is used to indicate the applicability of parts to different models of equipment. When more than one model of equipment is covered by a parts list, there are some parts which are used on only one model. This column is used for insertion of a code letter A, B, etc., to indicate these parts and to identify the particular model they are used on. Since this manual covers only one generator set specification, this column is not used in this manual. Parts coded A are usable on Part Number 287632-1 only. Parts coded B are usable on Part Number 287632-2 only. 09/08/98 Page 5
Assembly Figure 1 Page 6 09/08/98
NOMENCLATURE UNITS FIGURE & HOBART AIRLINE PER ITEM NO. PART NO. PART NO. 1234567 ASSY 1-287632-001 BLOCK HEATER KIT (120 VAC) A 1 287632-002 BLOCK HEATER KIT (240 VAC) B 1 1-1 287570. ADAPTER, ¾ HOSE BARB X ½ NPT 1 1-2 213502. HOSE, ¾ I.D. 21 1-3 W10882-002. ADAPTER, PIPE, BRASS, 3/8 NPT TO ¼ NPT 1 1-4 287779. ADAPTER, ¾ HOS BARB X 3/8 NPT 1 1-5 213502. HOSE, 3/4" I.D. RADIATOR 24" 1-6 NO NUMBER. CLAMP (INCLUDED WITH ITEM 7) 2 1-7 287566-1. BLOCK HEATER (V06991 #330-5060XX) A 1 287566-2. BLOCK HEATER (V06991 #330-5062XX) B 1 1-8 287773. BLOCK HEATER MOUNTING BRACKET 1 1-9 NO NUMBER. RECEPTACLE (INCLUDED WITH ITEM 7) 1 * NOT ILLUSTRATED 09/08/98 Page 7
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