D348 INDUSTRIAL & MARINE ENGINES Caterpillar


Air Starting Motors

Usage:

3H3171 (Switzer No. L-125354)

Output torque ... 82 lb.ft.(113 N·m)

with motor at ... 3600 rpm

at a pressure of ... 100 psi(690 kPa)

Horsepower ... 6.7

(1) Clearance between rotor and plate ... .003 in.(0.08 mm)

6N4859 (Ingersoll-Rand No. VRSM 110/6N4859)

3N9411 (Ingersoll-Rand No. VRSM 110/3N9411)

(1) Torque for bolts ... 20 to 25 lb.ft.(25 to 35 N·m)

(2) Pinion retainer screws:

1. Tighten screws evenly in small increases until torque is ... 100 lb.in.(11.3 N·m)

2. Hit retainer with hammer.

3. Tighten screws again to ... 100 lb.in.(11.3 N·m)

Caterpillar Information System:

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