Farr KT5500 Technical Manual page 55

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aInTEnanCE
Mechanical Assembly Procedure (Continued):
55. Attach the door latch weldment (PN 1064-C7-15) to the door weldment (PN 1400-10) using the door latch cam (PN 1400-14)
- ensure that the door latch springs (PN 997-16) are installed between the door latch and the door weldment. Thread the door
latch cam into the door weldment until in bottoms out, and then back it off until the first adjustment hole in the latch cam aligns
with the threaded hole on the top of the door weldment. Secure the latch cam to the door weldment with a 3/8" UNC x 1" hex
bolt and 3/8" lock washer.
56. Insert the the door pivot shoulder bushings (top bushing = PN 101-5110, bottom bushing = PN 101-5111) in the door weldment
- note that the bushings are installed from the insides of the door plates.
57. Align the door pivot holes with the pivot holes in the top and bottom plates and insert the door pivot roller shaft (PN 101-3943) - it
may have to be tapped lightly with a soft metal or rubber hammer. Use caution when sliding the shaft through the support roller
components. Once the shaft has been tapped all the way through, secure the bottom of the shaft with a 7/8 UNF thin nylock
nut and 7/8" narrow flat washer.
58. If your tong is equipped with the safety door option, it may now be installed (See Pp. 7.32 - 7.33) using the following procedure:
i. Attach safety door latch block, PN 101-1103, to safety door latch plate, PN 101-1105, using three 3/8" NC x 7/8" flat head
countersunk cap screws.
ii. Place safety door latch plate, PN 101-1105 onto the bottom plate of the safety door guard weldment, PN 101-1481, and
align the bolt holes. Secure to the top plate using three 3/8" NC x 2-1/4" hex bolts and lock washers.
iii. Attach the safety door latch block, PN 101-0914, to the top of the door plate using two 3/8" NC x 1-1/2" hex bolts and
lock washers, and two 3/8" NC x 1-1/2" flat head countersunk cap screws.
iv. Attach safety door latch block, PN 101-1104, to the safety door latch block installed in step 42 (iii) using four 3/8" NC x
7/8" hex cap screws and lock washers.
v. Insert load plunger, PN AE12-306, into LH safety door latch block.
vi. Attach three 1/4" NPT JIC elbows to the Deltrol safety door valve, PN 08-0337M. Position a 15/16" valve lock nut as
shown below, and secure the safety door valve to the safety door latch block using the valve lock nut (see illustration
below).
vii. Attach the safety door switch guard plate, PN 101-1480, to the safety door switch guard weldment using three 3/8" NC
x 3/4" hex bolts and lock washers.
59. Thread door cylinder mounting post (PN 1050-12-001) into top plate, just adjacent to the top LH brake band lug weldment.
60. Install door cylinder (PN 101-0069) - secure onto posts with 1/2" NC x 1/2" hex socket head shoulder bolts (UNC).
KT5500 5-
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