- Wheel Loader
- 966L (S/N: FSL1-UP; FRS1-UP)
- 972L (S/N: RFB1-UP; YJW1-UP)
Introduction
Inspections are the most basic form of condition monitoring. They are easy to do and surprisingly effective at helping you spot equipment health issues. Proactive monitoring and analysis of equipment information will allow Dealers to effectively intervene before problems occur.
Note: Before adjusting product settings to comply with listed baseline TA2 values, consult SIS for the latest specification values.
Creating an Electronic Copy
Use the following procedure to create an editable electronic copy from SIS Web.
- Click format to print.
- Save the document as an HTML format.
- Open the document with Microsoft Word.
Electrical System
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Inspect Battery Cables | Refer to Operation and Maintenance Manual, SEU9316-03, "Battery or Battery Cable - Clean/Inspect/Replace". | |||
Battery Test | 12 VDC | Refer to Testing and Adjusting, KENR9888-10, "Battery - Test". | ||
Charging System Test | Refer to Testing and Adjusting, KENR9888-10, "Charging System - Test". | |||
Electric Starting System Test | Refer to Testing and Adjusting, KENR9888-10, "Electrical System". |
(1) | N = Normal, M = Monitor, A = Action |
Cooling System
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Radiator Pressure Relief (Radiator Cap)(2) | Use 9S-8140 9S-8140 Pressurizing Pump to test the radiator pressure cap. |
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Freezing Point of Engine Coolant | ||||
Conditioner Test of Engine Coolant | ||||
Belt Tension | |
Auto Adjust Belt Tensioner | ||
Difference between the Upper and Lower Radiator Tank Temperatures |
(1) | N = Normal, M = Monitor, A = Action |
(2) | Test for the pressure that is listed on the cap. |
Fuel System
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Maximum Fuel Pressure of the High-Pressure Fuel System | |
(1) | N = Normal, M = Monitor, A = Action |
Lubrication System
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Minimum oil pressure at the Maximum Engine Speed and at the Normal Operating Temperature | |
(1) | N = Normal, M = Monitor, A = Action |
Basic Engine
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Engine Speed at Low Idle | 1400 RPM | |||
Engine Speed at High Idle | 2350 RPM | |||
Torque Converter Stall Test Engine RPM for 966 L | 2045 + / -30 RPM | |||
Torque Converter Stall Test Engine RPM for 972 L | 2045 + / - 65 RPM | |||
Cylinder Cutout Test | Cat® Electronic Technician (Cat ET) Service Tool | |||
Engine Crankcase Pressure (Blowby) |
(1) | N = Normal, M = Monitor, A = Action |
Air Inlet and Exhaust System
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Cylinder # 1 Exhaust Temperature(2) | ||||
Cylinder # 2 Exhaust Temperature (2) | ||||
Cylinder # 3 Exhaust Temperature(2) | ||||
Cylinder # 4 Exhaust Temperature(2) | ||||
Cylinder # 5 Exhaust Temperature(2) | ||||
Cylinder # 6 Exhaust Temperature(2) |
(1) | N = Normal, M = Monitor, A = Action |
(2) | Compare the exhaust temperature variance at each exhaust port. |
Hydraulic Performance Checks
Reference: Refer to Testing & Adjusting, M0067718, "Hydraulic System" for more detail on the following test.
Implement Cycle Time-Check (No Load - High Idle)
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Raise Cycle Time 966 L | 6.5 + / - 0.5 sec | |||
Raise Cycle Time 972 L | 6.5 + / - 0.5 sec | |||
Lower Cycle Time 966 L | 3.5 + / - 0.5 sec | |||
Lower Cycle Time 972 L | 3.8 + / - 0.5 sec | |||
Float Cycle Time 966 L | 2.6 + / - 0.5 sec | |||
Float Cycle Time 972 L | 3.4 + / - 0.5 sec | |||
Dump Cycle Time 966 L | 2.6 + / - 0.4 sec | |||
Dump Cycle Time 972 L | 2.7 + / - 0.4 sec | |||
Rack Cycle Time 966 L | 2.5 + / - 0.5 sec | |||
Rack Cycle Time 972 L | 3.0 + / - 0.5 sec |
(1) | N = Normal, M = Monitor, A = Action |
Lift and Tilt Cylinder Drift - Check
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Oil Temperature | |
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Lift Cylinder | |
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Tilt Cylinder | |
(1) | N = Normal, M = Monitor, A = Action |
Brake Performance Checks
Reference: Refer to Testing & Adjusting, M0067718, "Brake System" for more detail on the following test.
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Brake Accumulator - Test (Test from OMM) | ||||
Service Brake Holding Ability Test- Test (Test from OMM) | ||||
Parking Brake Holding Ability Test- Test (Test from OMM) |
(1) | N = Normal, M = Monitor, A = Action |
Steering Performance Checks
Reference: Refer to Testing & Adjusting, M0067718, "Steering System" for more detail on the following test.
Steering Time - Check
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Steering Time (High Idle) | 2.9 ± 0.3 seconds |
(1) | N = Normal, M = Monitor, A = Action |
Hydraulic System
Reference: Refer to Testing & Adjusting, M0067718, "Hydraulic System" for more detail on the following test.
Implement Piston Pump Discharge Pressure
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Implement Pump Discharge Pressure | |
(1) | N = Normal, M = Monitor, A = Action |
Implement Piston Pump Margin Pressure
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Implement Piston Pump Margin Pressure | |
(1) | N = Normal, M = Monitor, A = Action |
Implement Piston Pump Load Sense Pressure
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Implement Piston Pump Load Sense Pressure | |
(1) | N = Normal, M = Monitor, A = Action |
Pilot Pressure to the Main Control Valve
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Pilot Pressure to the Main Control Valve | |
(1) | N = Normal, M = Monitor, A = Action |
Pilot Oil Accumulator - Test
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Oil Temperature | |
|||
Accumulator Precharge | |
(1) | N = Normal, M = Monitor, A = Action |
Ride Control Accumulator - Test
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Oil Temperature | |
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Accumulator Precharge High Pressure | |
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Accumulator Precharge Low Pressure | |
(1) | N = Normal, M = Monitor, A = Action |
Pressure Limiter (Auxiliary Valve) - Check and Adjust
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Auxiliary pressure limiter | |
(1) | N = Normal, M = Monitor, A = Action |
Power Train System
Reference: Refer to Testing & Adjusting, M0067718, "Power Train System" for more detail on the following test.
Tire Pressure
The tire inflation pressure for machines that are shipped from the factory is suitable for shipping only. Always obtain the proper tire inflation pressures for your machine from the tire supplier before placing the machine into operation. The recommended tire inflation pressures for the front tires and for the rear tires will vary for each application.
Proper tire inflation pressure and maintenance of the tire inflation pressure is critical for optimum tire life. The tire inflation pressure should always be obtained from the tire supplier due to changes in the technology of tires, equipment, and job applications.
Reference: Refer to the latest edition of Special Publication, "Caterpillar Performance Handbook" for general information on tire inflation pressure.
Transmission Pressures
Transmission Pressures for the 966 L and 972 L Wheel Loaders | |||
---|---|---|---|
Pressure Tap Number | Description | Specification | |
966 L | 972 L | ||
(10) - (1) | (ΔP) Pump - Clutch 1 | |
|
(10) - (2) | (ΔP) Pump - Clutch 2 | |
|
(10) - (3) | (ΔP) Pump - Clutch 3 | |
|
(10) - (4) | (ΔP) Pump - Clutch 4 | |
|
(10) - (5) | (ΔP) Pump - Clutch 5 | |
|
(5) | Clutch Gauge 5 | |
|
(10) - (6) | (ΔP) Pump - Clutch 6 | |
|
(7) | Torque Converter inlet HIGH IDLE Neutral | |
|
(8) | Torque Converter Outlet HIGH IDLE Neutral | |
|
(9) | Transmission Lubrication HIGH IDLE Neutral | |
|
(10) | Transmission Pump eMRV
Test Point 1 - Test Point 2 - Test Point 3 - Test Point 4 |
|
|
(11) | Lock up clutch | |
|
Location of Pressure Taps
Illustration 1 | g03565399 |
Remote pressure taps. (1) Transmission pressure tap for clutch 1"Reverse" (2) Transmission pressure tap for clutch 2"Forward" (3) Transmission pressure tap for clutch 3"Fourth Speed" (4) Transmission pressure tap for clutch 4"Third Speed" (5) Transmission pressure tap for clutch 5"Second Speed" (6) Transmission pressure tap for clutch 6"First Speed" (7) Torque converter inlet pressure tap (8) Torque converter outlet pressure tap (9) Transmission lubrication pressure tap (10) Transmission pump pressure tap |
Illustration 2 | g06095304 |
Left side of torque converter housing (11) Lock up clutch pressure tap |
Steering System
Reference: Refer to Testing & Adjusting, M0067718, "Steering System" for more detail on the following test.
Piston Pump (Steering) High-Pressure Stall - Test
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
High-pressure cut off (High Idle) | |
(1) | N = Normal, M = Monitor, A = Action |
Piston Pump (Steering) Margin Pressure - Test
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Margin Pressure | |
(1) | N = Normal, M = Monitor, A = Action |
Steering Pilot System Pressure - Check
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Steering Pilot System Pressure-Check | |
(1) | N = Normal, M = Monitor, A = Action |
Steering Cylinder Crossover Relief Valve - Test
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Relief Valve (Steering Cylinder Work Port) | |
(1) | N = Normal, M = Monitor, A = Action |
Brake and Hydraulic Fan System
Reference: Refer to Testing & Adjusting, M0067718, "Brake and Hydraulic Fan System" for more detail on the following test.
Brake Accumulator Precharging Pressure
966 L 972 L Brake Accumulator charging valve pressure | ||
---|---|---|
Date | Equipment ID Code | |
Pump Pressure | Setting | Actual |
Cut-In pressure | |
|
Cut-Out pressure | |
Service Brake System Pressure - Test
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Front Service Brake | |
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Rear Service Brake | |
(1) | N = Normal, M = Monitor, A = Action |
Service Brake Wear Indicator
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Right Front Indicator Depth | |
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Left Front Indicator Depth | |
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Right Rear Indicator Depth | |
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Left Rear Indicator Depth | |
(1) | N = Normal, M = Monitor, A = Action |
Hydraulic Fan (If Equipped)
Specifications | |||
---|---|---|---|
Sales Model | Effectivity | Actual | Comments |
966L | S/N:FRS1-1065
S/N:FSL1-10203 |
||
972L | S/N:RFB1-1071
S/N:YJW1-10200 |
||
Fan Speed | |||
Minimum Fan Speed | 500 ± 50 RPM | ||
Maximum Fan Speed | 1200 ± 30 RPM | ||
Minimum Fan Speed with Optional Variable Pitch Fan | 525 ± 75 RPM | ||
Maximum Fan Speed with Optional Variable Pitch Fan | 1220 ± 30 RPM |
Specifications | |||
---|---|---|---|
Sales Model | Effectivity | Actual | Comments |
966L | S/N:FRS1066-UP
S/N:FSL10204-UP |
||
972L | S/N:RFB1072-UP
S/N:YJW10201-UP |
||
Fan Speed | |||
Minimum Fan Speed | 500 ± 50 RPM | ||
Maximum Fan Speed | 1200 ± 30 RPM | ||
Minimum Fan Speed with Optional Variable Pitch Fan | 525 ± 75 RPM | ||
Maximum Fan Speed with Optional Variable Pitch Fan | 1300 ± 30 RPM |
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Margin Pressure (High Idle) | |
|||
High-Pressure cut off (High Idle) | |
(1) | N = Normal, M = Monitor, A = Action |
Quick Coupler Pressure - Test and Adjust
Status(1) | Description | Specification | Actual | Comments |
---|---|---|---|---|
Quick coupler pressure | |
(1) | N = Normal, M = Monitor, A = Action |
Differential Lock Engagement Check
Refer to Testing & Adjusting, M0067718, "Differential Lock Engagement Check" for more detail on the following test.
Worksheet | |
---|---|
Target Pressure | Actual Pressure |
|
S·O·S Samples
Reference: Refer to Operation and Maintenance Manual, SEBU9053, "Maintenance Interval Schedule" for more detail on performing S.0.S samples.
Status(1) | Description | Obtain | Comments |
---|---|---|---|
Engine Oil Sample |
(1) | N = Normal, M = Monitor, A = Action |
Status(1) | Description | Obtain | Comments |
---|---|---|---|
Engine Coolant Sample |
(1) | N = Normal, M = Monitor, A = Action |
Status(1) | Description | Obtain | Comments |
---|---|---|---|
Hydraulic Oil Sample |
(1) | N = Normal, M = Monitor, A = Action |
Status(1) | Description | Obtain | Comments |
---|---|---|---|
Front Differential & Final Drive Oil Sample | |||
Rear Differential & Final Drive Oil Sample |
(1) | N = Normal, M = Monitor, A = Action |
Status(1) | Description | Obtain | Comments |
---|---|---|---|
Front Differential Oil Sample | |||
Rear Differential Oil Sample | |||
Left Front Final Drive Oil Sample | |||
Right Front Final Drive Oil Sample | |||
Left Rear Final Drive Oil Sample | |||
Right Rear Final Drive Oil Sample |
(1) | N = Normal, M = Monitor, A = Action |
Status(1) | Description | Obtain | Comments |
---|---|---|---|
Transmission/Torque Converter Oil Sample |
(1) | N = Normal, M = Monitor, A = Action |