TEST FRONT IDLER FOR OIL LEAKAGE
1. Turn the shaft several turns to seat metal face seals.
2. Remove plug (G).
3. Install parts (A--F) as shown. Plug, adapter, and
connector are from a leak detector kit such as the
D05361ST Rubber Stopper/Leak Detector Kit.
4. Holding plug so it is not pushed out, slowly pressurize
oil cavity using air.
Oil Cavity Air Test--Specification
Pressure ....................................................... 110 ± 28 kPa (1.1 ± 0.3 bar)
(16 ± 4 psi)
5. Close valve and wait for a minimum of 30 seconds to
check for oil leakage. Check gauge to see if air
pressure has decreased.
6. If there is external leakage, disassemble idler and
replace parts as necessary.
7. Check oil level in idler. If the oil level is down and there
is no external leakage, check for a leak from oil cavity
to interior of idler wheel.
A--Plug, Adapter and Connector
B--Connector 1/8 M NPT x 7/16-20 M 37°
8. Clean threads of plug using cure primer.
9. Apply thread lock and sealer (medium strength) to
E--Snubber (Needle) Valve
threads of plug. Install and tighten plug.
F--Air Pressure Regulator