Gehl 1438 1448 Power Box Self-Propelled Paver Parts Manual (Serial Numbers 18100 and Before)

Form No. 913209 Rev B Replaces 907875 PARTS MANUAL 1438 1448 (Serial Numbers 18100 and Before) Power Box ® Self-Propelled Paver ®

Introduction 1438/1448 Power Box The Table of Contents lists the page location of vari- ous component groups on the machine. When ordering service parts, specify the correct part number, full description, quantity required, and the unit model and serial number. Serial numbers for this unit are stamped on a plate located on top of the control panel housing. The serial number is also stamped on the left top backwall plate. The following reference shows the breakdown of the serial number: “Right” and “left” are determined from a position standing behind the screed and facing the machine. GEHL Company reserves the right to make changes or improvements in the design or construction of any part of the unit without incurring the obligation to install such changes on any unit previously delivered. If grease fittings and common attaching hardware, such as cotter pins, set screws, woodruff keys, screws, nuts, etc., are not illustrated, they may be in the parts list indented below the part they are associated with. The hardware listed is for mounting purposes and is NOT included when the part is ordered for replacement. Standard attaching hardware torque values are provided on the inside back cover. Unless otherwise specified, all capscrews are Grade 5, cadmium or zinc plated; hexagon nuts for Grade 5 capscrews and bolts are Grade A. List of abbreviations used in this manual AN Acorn Nut AR As Required ASY Assembly BHB Button Head Bolt CB Carriage Bolt CN Castellated Nut CYL Cylinder CS Cap Screw (Hexagon Head) DIA Diameter FHMS Flat Head Machine FLN Flanged Flexlock Nut FLS Flanged Lock Screw FT Foot or Feet GR Grade HLN Hexlock Nut HYD Hydraulic JN Jam Nut L Lock (Washer) LH Left Hand LT Left N Nut (Plain Hex) NIN Nylon Insert Lock Nut NPTF National Pipe Threaded Fitting NSS Not Sold Separately P Plain (Washer) PB Plow Bolt PHS Pan Head Screw RH Right Hand RHMS Round Head Machine Screw RHSMS Round Head Sheet Metal Screw RNF Retained Nut Fastener RT Right SHCS Socket Head Cap Screw SHSS Socket Head Set Screw SFN Serrated Flange Nut SHSS Square Head Set Screw SQ Square STS Self-Thread Screw Hex. Washer Head THMS Truss-Head Machine Screw TRS Thread Roll Screw W/ With WN Wing Nut I U 12 17719 Unit Number Engine Month Year (S=01, T=02, U=03, etc.)

PRINTED IN U.S.A. 1 913209/BP0107 1438/1448 Power Box Introduction 1438 Replacement Filters Chart Engine Oil Filter Element Gehl P/N P700002 In-Line Fuel Filter Gehl P/N P700003 Hydraulic System Filters Screw-On Filter Element Gehl P/N 074830 Reservoir Sump Strainer Gehl P/N 128299 Air Cleaner Dry Element Gehl P/N P700004 Pre-Cleaner Ring Gehl P/N P700005 1448 Replacement Filters Chart Engine Oil Filter Element Gehl P/N P700113 Fuel Filter Element Gehl P/N 123828 Hydraulic System Filters Screw-On Filter Element Gehl P/N 074830 Reservoir Sump Strainer Gehl P/N 128299 Air Cleaner Dry Element Gehl P/N 055017

913209/BP0107 2 PRINTED IN U.S.A. Table of Contents 1438/1448 Power Box Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Inside Front Cover List of Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Inside Front Cover Filter Reference Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Decals Section General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 New Decal Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Decal Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Lower Frame, Hopper and Screed Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Backwall and Console Area (1448) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Backwall and Console Area (1438) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Chassis Section Main Screed Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Screed Extensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 Pullarm Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Propane Kit Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Screed Cutoff Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Spraydown Tank Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Fuel Tank Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 Hopper Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 Wing Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 Chassis / Backwall Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Flow Gate Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 Covers Assembly (1438) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Covers Assembly (1448) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Electrical and Instrument Panel Assembly (1448) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Electrical and Instrument Panel Assembly (1438) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Engine Assembly (1438) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Engine Assembly (1448 Part 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 Engine Assembly (1448 Part 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 Drive Train Track Drive Gearbox Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 Track Drive Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 Positive Track Drive Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 Rubber Tire Drive Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40 Hydraulic Assemblies Section 1438 Pump/Reservoir Plumbing Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42-59 1448 Pump/Reservoir Plumbing Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60-73 Drive Motors Plumbing Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74-91 Hopper and Gates Plumbing Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92 Screed Plumbing Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94

PRINTED IN U.S.A. 3 913209/BP0107 1438/1448 Power Box Table of Contents Hydraulic Components Section Front Piston Pump (All 1438 & 1448 thru S/N 7486) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96 Front Piston Pump (1448 S/N 7487 & up) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98 Gear Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .100 Auger Motor and Single Speed Drive Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101 Two Speed Drive Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102 Positive Track Drive Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103 Track Drive Torque Hub (1438 S/N 14197 & up incl. 14060 & 14062, 1448 S/N 17075 - 17452)104 Track Drive Torque Hub (1448 S/N 17453 & up) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106 Screed Vibrator Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108 Drive Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109 9-Stack Control Valve (Part I) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110 9-Stack Control Valve (Part II) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112 9-Stack Control Valve - Cap Ends (Part III) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114 Speed Selector Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115 Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115 Screed Extend Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116 Screed Lift and Gate Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117 Hopper Lift Cylinder (1438 thru S/N 14048, 1448 thru S/N 17002) . . . . . . . . . . . . . . . . . . . . . . . .118 Hopper Lift Cylinder (1438 S/N 14049 & up, 1448 S/N 17003 & up) . . . . . . . . . . . . . . . . . . . . . .119 Track Tension Cylinder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120 Miscellaneous Section Numerical Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .121 Hardware Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Inside Back Cover

913209/BP0107 4 PRINTED IN U.S.A. GENERAL INFORMATION Decal locations information is provided to assist in the proper selection and application of new decals, in the event the original decal become damaged or the machine is repainted. For correct replacement of decal, compare the location photographs to your machine before starting to refinish the unit. Check off each required decal using the illustration reference number to find the part number, description and quantity in the list. Refer to the appropriate illustration for replacement location. NEW DECAL APPLICATION Before applying the new decals, surfaces must be free from dirt, dust, grease and other foreign material. To apply a solid-formed decal, remove the smaller portion of the decal backing paper and apply this part of the exposed adhesive backing to the clean surface while maintaining proper position and alignment. Slowly peel off the other portion of the backing paper while applying hand pressure to smooth out decal surface. To apply a pre-mask decal, first remove the backing paper to expose the adhesive side of the decal. Then, properly orient and position the decal onto the clean mounting surface. After the decal is firmly applied and smoothly pressed down, peel off the top covering paper. Decals 1438/1448 Power Box CAUTION ALWAYS read and follow the safety rules and information shown on decals. If any decals are damaged or unreadable, or if the unit is repainted, the decals must be replaced. If repainting, BE SURE that all decals that apply to your machine are affixed in their proper locations. PAINT FINISH Use this list to order paint for refinishing: All 1438, 1448 thru S/N 17637. 906213 One Gal. Yellow 906214 6 (12 oz. Spray Cans) Yellow 906317 One Gal. Charcoal Grey 906318 6 (12 oz. Spray Cans) Charcoal Grey 1448 S/N 17638 and up. 906213 One Gal. Yellow 906214 6 (12 oz. Spray Cans) Yellow 420-36230 One Gal. Grey 910100 6 (12 oz. Spray Cans) Grey COMPLETE DECAL KIT P700322 All 1438 P700323 1448 thru S/N 17637 L500936 1448 S/N 17638 and up NOTE: Decals may be purchased in a kit or individually.

PRINTED IN U.S.A. 5 913209/BP0107 1438/1448 Power Box Decals Lower Frame, Hopper and Screed Areas 1 11 10 1 9 8 1 7 5 6 4 3 2 REF. DESCRIPTION 1438 1448 NO. 01 WARNING - Pinch Point (each side) L65927 L65927 02 Made in USA 137654 137654 03 a GEHL Lettering (each side) L82282 L82282 03 b GEHL Lettering (each side) 137551 04 a Model Number - 1438 or 1448 (each side) P470322 P470852 04 b Model Number - 1448 (each side) 101483 05 Up/Down Screed ((each pullarm) P214000 P214000 06 0-6 Thickness Indicator (each pullarm) P201400 P201400 07 a PowerBox Lettering (each side) P204030 P204030 07 b PowerBox Lettering (each side) 101481 08 a PB Logo, 5” (each side) P470323 P470323 08 b PB Logo, 5” (each side) 101482 09 Floor Safety Prop (each safety prop) P210200 P210200 10 Hydraulic Fluid (1 ea.) 137632 137632 a All 1438’s. 1448’s thru S/N 17637. b 1448 S/N 17638 and up.

913209/BP0107 6 PRINTED IN U.S.A. Decals 1438/1448 Power Box Backwall and Console Area (1448 Locations) 23 6 14 22 21 20 1 19 18 16 17 15 13 12 11 10 8 9 7 5 4 3 2 1

PRINTED IN U.S.A. 7 913209/BP0107 1438/1448 Power Box Decals Backwall and Console Area (1438 Locations) REF. DESCRIPTION 1438 1448 NO. 01 Horn P204107 P204107 02 Drive Control P212750 P212750 03 Warning - Loading / Unloading P204101 P204101 04 L.H. 9 Stack Valve P204012 P204012 05 Important - Operator Instructions L277594 L277594 06 Warning - Operator P204100 P204100 07 Fast/Slow Control P204015 P204015 08 Test Ports P471482 P471482 09 Hydraulic Oil Under Pressure P471310 P471310 10 Exhaust Diverter --- P471840 11 Asphalt Release Agent P471816 P471816 12 Maintenance Decal P471025 101164 13 Filter Chart P470875 101502 14 Diesel Fuel --- 137634 15 Hot Surface Warning L65942 L65942 16 Coolant Under Pressure --- 072798 17 Radiator Valve --- P470960 18 Antifreeze --- 056859 19 R.H. Stack Valve P204013 P204013 20 Danger Rotating Components --- L65924 21 Jumpstart Warning L65933 L65933 22 Operator Manual 137628 137628 23 2-Speed (optional) P204014 P204014 1 1 2 3 4 5 6 7 8 9 12 13 15 19 21 22 23

913209/BP0107 8 PRINTED IN U.S.A. Chassis 1438/1448 Power Box Main Screed Assembly 1 2 5 17 18 5 16 15 8 9 10 11 12 13 14 4 3 22 21 27 26 17 5 20 19 6 7 33 32 24 31 28 17 30 29 18 17 25 17 18 24 23 34 36 35

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Gehl 1438 1448 Power Box Self-Propelled Paver Parts Manual (Serial Numbers 18100 and Before)

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