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Related Manuals for PERMCO 257 Series
Summarization of Contents
Tool List and Kits
Bushing Insertion Kits
Kits include insertion tool and guide or see sketches to right.
Guide for Replacing Parts
Thrust Plates
Replace plates if scored, eroded, pitted, or discolored from heat.
Gears
Replace if any scoring on journals is found. Also fretting, nicking, scoring, or grooving of teeth surfaces.
Gear Shafts
Replace if any wear is found in seal area. Also replace if any wear on splines or keyway is found.
Gear Housing
Replace if wear exceeds 0.005” below bore.
Dowel Pins
If the dowel pin is loose in the casting, either the dowel pin or casting must be replaced.
Bushings
Replace if scoring, discoloration, or signs of copper showing through. If gear set is replaced, the bushings should also be replaced.
Bushing Install
P124/M124 Bushing Installation
Install bushings with butt joints at 12:00 and 6:00 o'clock. Bushings must be flush to slightly below surface.
P197/M197 Bushing Installation
Install with lube grooves and butt joints for performance, or per M197 diagram; must be flush to surface.
Bushing Install
P257/M257 Bushing Installation
Install bushings with lube grooves and butt joints as shown. Bushings must be flush to slightly below the surface.
P360/M360 Bushing Installation
Install bushings with lube grooves at 12:00 and 6:00 o'clock. OD chamfer/lead-in is down, square corner flush.
Procedures/Notes
Startup and Break-in Procedure
Run pump for two minutes under no load, low pressure, low rpm. Commence testing if functioning properly.
Testing Procedure
Test unit within working pressure of application. Minimize housing wipe and assure optimum output.
Fluid Type and Temperature Conditions
Compatible with mineral, water glycol, invert emulsion. Premium hydraulic fluid recommended for optimum performance.
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