AP655D and BG655D Asphalt Pavers Propel System Caterpillar

Illustration 1	g01417912

Type ... Planetary gear reducer (two speed) with integral braking system

High gear ratio ... 33.66:1

Low gear ratio ... 119.51:1

Minimum shift pressure ... 2000 kPa (290 psi)

Maximum shift pressure ... 10400 kPa (1500 psi)

Full brake release pressure ... 3000 kPa (435 psi)

Maximum brake pressure ... 20000 kPa (2900 psi)

Continuous torque rating ... 17000 N·m (12540 lb ft)

Maximum intermittent torque rating ... 3400 N·m (2500 lb ft)

Maximum input speed ... 3800 rpm

(1) Use the following shim, as required:

251-9614 Shim Kit

Thickness of first shim ... 0.10 mm (0.004 inch)

Thickness of second shim ... 0.20 mm (0.008 inch)

Thickness of third shim ... 0.40 mm (0.016 inch)

Illustration 2	g01417922
Rear top view (3) Adapter plate (4) Shield (5) Final drive planetary group (7) Wheel (inner) (8) Wheel (outer)

(2) Torque for 40 bolts ... 460 ± 60 N·m (340 ± 44 lb ft)

(6) Torque for 32 bolts ... 530 ± 70 N·m (390 ± 50 lb ft)

(9) Use the following procedure in order to tighten the 32 nuts in the cross pattern:

1. Tighten the nuts in the first pass to a approximate torque of 450 N·m (330 lb ft).

2. Tighten the nuts in the second pass to a torque of 560 ± 60 N·m (410 ± 44 lb ft).

Illustration 3	g01417932
Left side assembly

(A) Orientation for the elbow assembly (10) ... 30 degrees

Illustration 4	g01417938
Right side assembly

(B) Orientation for the elbow assembly (11) ... 40 degrees