3054B Industrial Engine Caterpillar

Balancer - Assemble

Usage:

Assembly Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	329-6925	Balancer weight locking shaft	1
B	1U-7262	Telescopic Magnet	1
D	FT3130	Bearing Installer	1
E	9U-7324	Indicator Bracket	1
	7H-1942	Dial Indicator	1
	3S-3268	Indicator Contact Point	1
	7H-1940	Universal Attachment	1
F	FT3132	Bearing Installer	1
G	FT3131	Bearing Installer	1
H	4C-4030	Loctite 243	1

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NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

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Illustration 1	g01518473

Ensure that all components are clean and free from damage.

If necessary, install new bushing (32) . Use Tooling (D) to install the new bushing. Refer to Specifications, "Gear Group (Front)" for the correct tolerances.

Lubricate bushing (32) with clean engine oil.

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Illustration 2	g01518454

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Movement of the counterweight can cause personal injury.

Install balancer weights (31) into the balancer frame. Ensure that the balance weights are installed in the correct orientation.

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Illustration 3	g01518493

If necessary, install new bushing (33) . Use Tooling (D) to install the new bushing. Refer to Specifications, "Gear Group (Front)" for the correct tolerances.

Lubricate the bushing with clean engine oil.

Install the rear section of balancer frame (30) . Ensure the correct location of the cover on the dowels. Use a soft faced hammer in order to locate the cover onto the rear of the balancer.

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Illustration 4	g01525224

Install bolts (29) . Tighten the bolts to a torque of 55 N·m (41 lb ft). Ensure that the balancer weights rotate freely.

Use tooling (E) in order to check the backlash between gears (31) of the balance weights. Refer to Specifications, "Gear Group (Front)" for the correct tolerances.

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Illustration 5	g03706276

Install tool (A) in order to lock balancer weights in the correct position.

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Illustration 6	g01507781

Install cover (28) to the rear of the balancer frame.

Install bolts (27) . Tighten the bolts to a torque of 30 N·m (22 lb ft).

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Illustration 7	g01525271

Lubricate outer rotor (26) with clean engine oil.

Install the outer rotor to the oil pump body (34) .

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Illustration 8	g01886753
Checking the clearance between the outer rotor and the oil pump body

Check the clearance between outer rotor (26) and oil pump body (34) . Refer to Specifications, "Engine Oil Pump" for the correct tolerances.

Lubricate inner rotor (25) with clean engine oil. Install the inner rotor to outer rotor (26) .

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Illustration 9	g01886761
Checking the clearance between the inner rotor and the outer rotor

Check the clearance between inner rotor (25) and outer rotor (26) . Refer to Specifications, "Engine Oil Pump" for the correct tolerances.

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Illustration 10	g01848300
Checking the end play of the rotor assembly

Check the end play of the rotor assembly. Refer to Specifications, "Engine Oil Pump" for the correct tolerances.

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Illustration 11	g01515003

Position oil pump cover (24) and install bolt (23) . Tighten the bolt finger tight.

Install oil pump assembly (22) to the balancer frame. Install the remaining bolts and tighten the bolts to a torque of 30 N·m (22 lb ft).

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Illustration 12	g01521644

If necessary, install new needle bearing (20) . Use Tooling (F) to install the new needle bearing. Refer to Specifications, "Gear Group (Front)" for the correct tolerances.

If necessary, install new needle bearing (21) . Use Tooling (G) to install needle bearing (21) . Refer to Specifications, "Gear Group (Front)" for the correct tolerances.

Lubricate the needle bearings with clean engine oil.

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Illustration 13	g01519041

Use Tooling (H) on thread (35) and drive shaft splines (36) .

Install drive shaft (16) and align splines (37) with the oil pump assembly.

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Illustration 14	g01525560

Align gear (17) with drive shaft splines (36) .

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Illustration 15	g01522965
Position of gears and balance weights with Tooling (A) in position

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Illustration 16	g01523006
Position of gears and balance weights without Tooling (A)

Ensure correct alignment of gear (38) on the drive shaft. Refer to Illustration 15 for the position of the gear and counter balancer weight. The position of the gear on the drive shaft and balancer weight is shown in Illustration 16 after tooling (A) has been removed.

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Illustration 17	g01525562

Install nut (18) . Use the nut to draw the gear onto splines of drive shaft. Tighten the nut to a torque of 82 N·m (61 lb ft).

In order to check the end play of the drive shaft, refer to Specifications, "Gear Group (Front)" for the correct tolerances.

Use Tooling (E) in order to check the backlash in gear (17) and the splined shaft on the balancer weight (39) . Refer to Specifications, "Gear Group (Front)" for the correct tolerances.

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Illustration 18	g01519054

Lubricate needle bearing (41) with clean engine oil.

Install the needle bearing to idler hub (40) .

Install idler gear (13) to the hub and bearing. Ensure correct orientation of gear. Install washer (15) .

Install a new bolt (14) to the assembly of the idler gear.

Install idler gear assembly to the balancer frame.

Tighten bolt (14) to a torque of 93 N·m (69 lb ft).

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Illustration 19	g01526900

Use Tooling (E) in order to check the backlash between gear (13) and gear (42) . Refer to Specifications, "Gear Group (Front)" for the correct tolerances.