Idler Gear

Idler gear






Disassembly

Notice: Use protective plates in vise to prevent damage to SST (OK130 191 034).





1. Secure idler shaft in a vise with SST (OK130 191 034) and remove locknut.





2. Remove bearing outer race from idler gear with SST (OK130 170 012).

Re-assembly





1. Press bearing outer races.





2. Install idler gear bearing onto idler shaft, then install idler gear, adjustment shims, spacer and bearing.

Notice: Use protective plates in vise to prevent damage to SST





3. Secure idler shaft in a vise with SST (OK130 191 034) and tighten locknut to lower limit of tightening torque.
Tightening torque: 95 - 130 ft. lbs. (128 - 176 Nm, 13 - 18 kg.m)

Notice: Use protective plates in vise to prevent damage to idler gear.

4. Check and adjust idler gear bearing preload.
a. Turn idler gear assembly and SST (OK130 191 034) over and secure gear in vise.





b. Attach SST (OK130 191 034) and spring scale or torque wrench and measure preload while tightening locknut.

Notice: Read preload when idler shaft is rotating.





Tightening torque: 95 - 130 ft. lbs. (128 - 176 Nm, 13 - 18 kg.m)
Preload: 0.27 - 7.8 inch lbs. (0.03 - 0.8 Nm, 0.3 - 0.9 kg.cm)





Notice:
a) The maximum allowable number of shims is 7.
b) Preload is reduced by increasing thickness of shims, or increased by reducing thickness.








5. If specified preload cannot be obtained within specified tightening torque, adjust by selecting proper adjustment shims.