Chassis - Chassis, Hood and Fenders Section 100-0010 SM - 1958 MAINTENANCE Inspection 8 Inspect the frame and attached parts at intervals not exceeding 250 hours for cracked or broken welds and bending/twisting of the frame. Any defects found should be repaired before they progress into major failures. Contact your dealer for recommended weld and repair instructions. 7 6 1 Welding Note: It is important that the electrical connections are disconnected in the following order to prevent damage to the electrical components: 5 4 3 2 5 4 3 a. Disconnect battery equalizer ground cables. b. Disconnect battery cables from terminal posts (ground cable first). c.
Disconnect battery equalizer positive cables. d. Disconnect electrical connections at the ECU. 1 - Hood Assembly 2 - Plate 3 - Bolt 4 - Hardened Washer 5 - Nut 6 - Baffle 7 - Baffle 8 - Beading After welding, reconnect all of the above in the reverse order. Fig. 2 - Exploded View of Hood and Mounting WARNING Welding and flame cutting cadmium plated metals produce odourless fumes which are toxic. Recommended industrial hygiene practice for protection of the welding operator from the cadmium fumes and metallic oxides requires enclosure ventilation specifically designed for the welding process. A respiratory protective device such as the M.S.A. 'Gasfoe' respirator with G.M.A.
cartridge will provide protection against cadmium, fumes and metallic oxides. The 'Gasfoe' respirator has been approved by the U.S. Bureau of Mines: Approval number 23B-10, and is designed to protect against gases, vapours, and/or metal fumes. and the ability of the welder. The Service Department can be consulted regarding the feasibility of welding repairs. Painting A check of the condition of the paint should be made approximately twice a year and chassis repainted if necessary. WARNING Welding, burning, heating or dressing surfaces previously painted using polyurethane paint produces fumes which are toxic. Surfaces must be prepared using paint stripper prior to area being reworked.
Recommended Industrial Hygiene and Safety Rules should be be followed for protection of the welding operator from fumes. Electric arc welding is recommended for all chassis welding. Since the nature and extent of damage to the frame cannot be predetermined, no definite repair procedure can be established. As a general rule however, if parts are twisted, bent or pulled apart, or a frame is bent or twisted, no welding should be done until the parts are straightened or realigned. If painting of the actual frame of the unit is required, thoroughly clean the areas to be painted. Apply a primer coat of red oxide and then a finish coat of polyurethane enamel.
Successfully welded repairs will depend to a great extent upon the use of the proper equipment, materials To keep rust and corrosion to a minimum, periodic painting of abrasions and other exposed metal areas on the frame is highly recommended. 2 SM 1570 12-98