JLG 1850SJ Service And Maintenance Manual Download

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SECTION 4 - BOOM & PLATFORM

3121619

4-33

33.

Coat the bolts with JLG Threadlocker P/N 0100011.
Install the rear upper wear pads to section 3 using wash-
ers, bolts, and shims. Torque the bolts to 28 ft.lbs. (38
Nm).

34.

Coat the bolts with JLG Threadlocker P/N 0100011.
Install the outer rear side wear pads to section 3 using
washers, bolts, and shims. Torque the bolts to 28 ft.lbs.
(38 Nm).

35.

Coat the bolts with JLG Threadlocker P/N 0100011.
Install the rear inner side wear pads to section 3 using
washers, and bolts. Torque the bolts to 28 ft.lbs. (38 Nm)

36.

Coat the bolts with JLG Threadlocker P/N 0100011.
Install the bottom rear wear pad to section 3 using
washers and bolts. Torque the bolts to 28 ft.lbs. (38 Nm).

37.

Apply moly paste to the I.D. of the sheave bearings.
Install the sheaves to section 3.

38.

Coat the two sheave center bolts with JLG Threadlocker
P/N 0100019 and the sheave plate retaining bolts with
JLG Threadlocker P/N 0100011. Install the sheave plates
and rope retainer blocks to section 3 using the retaining
bolts. Torque the sheave center bolts to 178 ft.lbs. (241
Nm). Torque the sheave plate retaining bolts to 41 ft.lbs.
(55 Nm)

39.

Coat the bolts with JLG Threadlocker P/N 0100011.
Install the section 3 retract ropes to the rear of section 3
using washers, bolts, and pads. Torque the bolts to 28
ft.lbs. (38 Nm).

NOTE:

Boom section 2 weighs approximately 3755 lbs. (1703 kg).

40.

Place boom section 2 on a proper supporting device.

41.

Apply Super Lube® lubricant (JLG p/n 3020042) to all 4
sides of the boom approximately 3 to 4 feet on both
ends. Apply Super Lube® to section 3 on the end that
will go into section 2 only. Apply super lube to all outer
surfaces of interior wear pads after they are installed.
Slide sections 3,4, and 5 as an assembly into section 2
using proper lifting procedures.

42.

Coat the bolts with JLG Threadlocker P/N 0100011.
Install the wear pads to section 2 using the bolts and
washers. Torque the bolts to 43 ft.lbs. (58 Nm).

43.

Install the adjustment nuts and lock nuts to the section
4 extend ropes.

44.

Install the rope adjustment bracket to section 2 using
washers, bolts, and nuts as shown.

45.

Coat the bolts with JLG Threadlocker P/N 0100011.
Install the section 4 return ropes to the rope adjustment
bracket on section 2 using washers, bolts, keepers, and
nuts.

46.

Coat the bolts with JLG Threadlocker P/N 0100011.
Install the sheave deflectors to the rope adjustment
bracket on section 2 using nuts, bolts, and washers.

47.

Coat the bolts with JLG Threadlocker P/N 0100011.
Install the front side wear pads to section 2 using wash-
ers, bolts, and shims. Torque the bolts to 28 ft.lbs. (38
Nm)

48.

Coat the bolts with JLG Threadlocker P/N 0100011.
Install front top wear pads to section 2 using washers,
bolts, and shims. Torque the bolts to 28 ft.lbs. (38 Nm)

49.

Coat the bolts with JLG Threadlocker P/N 0100011.
Install the rear top wear pads to section 3 using washers,
bolts, and shims. Torque the bolts to 28 ft.lbs. (38 Nm).

50.

Coat the bolts with JLG Threadlocker P/N 0100011.
Install the rear side wear pads to section 2 using wash-
ers, bolts, and shims. Torque to 28 ft.lbs. (38 Nm).

JLG 1850SJ, Service And Maintenance Manual

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