STARTING MOTOR GP-ELECTRIC 6T0646 - Caterpillar

Illustration 25 g02545816
Slight discoloration on the small diameter which cannot be felt with a fingernail or pencil lead is permitted.Use AgainUse a micrometer to take measurements around the diameter. All measurements must be the same. No damage is permitted in the slide block groove.Cover (AC)
Illustration 26 g02545837
Cover (AC) (95) .Use Again - after removing corrosion and pitting.
Illustration 27 g02545856
Slight pitting with no rust is permitted after cleaning.Use Again Set Screw
Illustration 28 g02545858
Set Screw (92) .Use AgainNo damage to the recessed hex or threads is permitted. Threads must be cleaned with a wire brush and cleaning solvent before reuse.Cover (TC)
Illustration 29 g02545861
Cover (TC) (89). Rust and paint on the machined surface must be removed. Remove with a wire brush and cleaning solvent.Use AgainCover (NF)
Illustration 30 g02545862
Cover (NF) (80). Discolored areas that do not contain rust are permitted after cleaning.Use AgainHigh Pressure Cut-Off Valve
The high pressure cut-off valve can be permanently removed from the pump. Before repairing or eliminating valve, refer to page 1 of the September 9, 1991 Service Magazine, SEPD0082, "New Main Hydraulic Pumps Do Not Have High Pressure Cut-Off (HPC) Control, New Control Valves Used".If the valve is repaired, any damaged parts in this valve must be replaced with new parts. Reusing damaged parts will adversely affect the control characteristics of the pump during testing and while in operation on the vehicle.The high pressure cut-off valve should only be disassembled if:
evidence of contamination is present during the pump disassembly, or
the pump is being rebuilt after the failure of internal components.
Illustration 31 g02545866
High Pressure Cut-Off Valve Assembly (71). See Table 7 for reference items.
Table 7
High Pressure Cut-Off Valve Nomenclature    
Item     Description     Item     Description    
(99)     Set Screw     (108)     Plate    
(100)     Stopper     (112)     Piston (PC)    
(102)     Body     (114)     Steel Ball    
(103)     Spool     (115)     Spring Guide    
(104)     Sleeve     (116)     Spring (PC)    
(105)     Snap Ring     (117)     Plate    
(106)     Wave Washer     (118)     Nut    
(107)     Stopper (PC)            Plate
Illustration 32 g02545869
Plate (117). Rust and corrosion on the machined surface of the plate.Use Again - after rust is removed using a cleaning solvent and a wire brush.
Illustration 33 g02545870
Small pits free of rust after cleaning are permitted.Use Again