Case 1850K Tier 2 Crawler Dozer Operators Manual 76093503GB - PDF DOWNLOAD

Page 55

40

1850K

BRAKES DISENGAGEMENT

Brakes engaged position

In the event the engine is inoperative and the machine must be moved, it is necessary to manually disengage the brakes, proceeding as follows: Tooling required: - wrench, 19 mm and 22 mm (0.74 and 0.87 in); - allen wrench 8 mm (0.31 in); - hand pump (*P/N 75295017); - 2 brakes disengagement bolt (* P/N 380001315)

S

C

A

B

4,5 mm (0.18 in)

D350M0164

WARNING

WARNING

Brakes mechanically disengaged are inoperative. Prior to beginning the operations for the disengagement of the brakes, implement all the precautions required to block the machine.

Brakes mechanically disengaged are inoperative. Prior to beginning the brake disengagement operations, implement all necessary cautions to secure the machine.

3) Loosen plug (T) on connection (R) as indicated, on the transmission housing.

Disengaging the brakes

R

T

Tilt the cab. 1) Remove guards (R, fig A) and stone guard (P) loosening securing screws (V) on both sides. 2) Remove plug (T) using an Allen wrench and tighten disengagement screw (A, fig. B 380001315) complete with washer and locknut (C) on piston (S).

R

P V V

1850-2M0094

T

Connect hand pump (75295017) and actuate until disengagement screw (A, fig. E) indicating the unlocking of piston (S) (about 4.5 mm) (0.18 in).

Note – The hand pump must have a delivery of at least 100 cu cm per stroke and a head of at least 20 bar (290 p.s.i.). The cab-lifting pump is not sufficient to disengage the brakes. A 1850-2M0093

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)


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