CLARITY SYNTHETIC HYDRAULIC OIL AW FOR CURRENT …

Pdf File 221.11KByte

WHITEPAPER

CLARITY? SYNTHETIC HYDRAULIC OIL AW FOR CURRENT GENERATION OF HITACHI-JOHN DEERE EXCAVATORS

The current generation of hydraulic excavators from Hitachi Construction Machinery Co. Ltd. and Deere-Hitachi Construction Machinery Corporation require the use of advanced hydraulic oil formulation technology.

? They do not provide approvals for fluids or publish fluid specifications.

? They recommend fluids meet the JCMAS HK specification.

? Clarity Synthetic Hydraulic Oil AW meets or exceeds JCMAS HK.

? Clarity Synthetic Hydraulic Oils AW are compatible. To obtain the full benefit and performance of the product, the following guidelines are recommended:

1. Drain, flush, and fill. Advantage of this approach is you are extracting maximum value from the product.

2. D rain and fill.This second recommendation allows improvement over the in-service base fluid.

3. Top-off. Customer will not receive meaningful benefit until they can switch over completely and use one of the above two procedures.

1

CLARITY? SYNTHETIC HYDRAULIC OIL AW FOR CURRENT GENERATION OF HITACHI-JOHN DEERE EXCAVATORS

KEY JCMAS HK SPECIFICATION DETAIL COMPARISON CLARITY SYNTHETIC HYDRAULIC OIL AW ISO 46 AND HITACHI GENUINE HYDRAULIC OIL SUPER EX 46HN

Analytical Test

Specification Requirement

Clarity Synthetic Hydraulic Oil AW 46

Hitachi Genuine Hydraulic Oil Super EX 46HN****

ISO Viscosity Grade Viscosity, D445, cSt

40?C 100?C Viscosity Index Density @ 15?C, D1298 Low Temperature Viscosity, Brookfield, cP -20?C -30?C Foam Testing, D892 Sequence I Tendency/Stability, ml Sequence II Tendency/Stability, ml Sequence III Tendency/Stability, ml Sonic Shear Stability, ASTM D5621 Oxidation Stability, D4310 D943 1000 hr, mgKOH/g ***Rotating Pressure Vessel Oxidation Test (RPVOT), D2272, minutes Elastomer Compatibility, NBR Change in hardness, Shore A, pts Change in volume,% Filterability Load Carrying Capacity (4-Ball), N 4-Ball Wear, D4172, (40 kg, 60 min, 1200 rpm), mm Load Carrying Capacity, FZG High Pressure Piston Pump, Vane pump Friction Characteristic, micro clutch Coefficient

ISO VG 46

41.4 ? 50.6 6.8 min 120 min -

5000 min (-20?C)

50/0 max

50/0 max

50/0 max 10 max 1.0 max

-

-25 min 30 max Pass 1235 min

0.6 max 8 min Pass

0.08 min

ISO VG 46

46.8 9.3 (exceed) 186 (exceed)

0.84

1820 (exceed) 5430 (exceed)

Pass

Pass

Pass Pass (exceed)

Pass 628

Pass Pass Pass 1962 (exceed)

Pass 12 (exceed)

Pass

Pass

ISO VG 46

47.5** 7.6** 125** 0.86**

<5000 8350*

Pass

Pass

Pass Pass Pass 522*

Pass Pass Pass Pass

Pass Pass Pass

Pass

* Bench test data for market sample of Hitachi Genuine Hydraulic Oil Super EX 46HN. ** Published Data for Hitachi Genuine Hydraulic Oil Super EX 46HN Typical Properties. *** Test is not part of JCMAS HK Specification. **** Same fluid used by John Deere in Factory Fill for Excavators.

Table I

2

CLARITY? SYNTHETIC HYDRAULIC OIL AW FOR CURRENT GENERATION OF HITACHI-JOHN DEERE EXCAVATORS

Clarity Synthetic Hydraulic Oils AW have similar or better performance properties as compared to the published Hitachi Construction Machinery Co. Ltd. and Deere-Hitachi Construction Machinery Corporation factory fill oils.

Clarity Synthetic Hydraulic Oils AW are formulated with synthetic base stocks and a proprietary ashless additive system that provide exceptional oxidation stability, water separability, foam suppression, and protection against wear, rust and corrosion. The combination of base stocks, additives, and viscosity index improvers are unique and allow for improved hydraulic response time (productivity), fuel efficiency, longer oil life, and increased operating temperature range. The response time and efficiency occur across the span of the equipment's operating temperature, which allows it to function in a wide range of ambient temperatures.

Formulated for savings

Our entire line of premium hydraulic fluids have been designed to best meet your operation's needs. Each is precisely formulated to help maximize performance and savings.

Environmentally Sensitive

OEM OEM Approval

OEM Clarity? Synthetic Hydraulic Oil AW

OEM Rando? HDZ

Productivity

Fuel Efficiency Long Oil Life

OEM Rando? HD

Figure 1: Premium Hydraulic Lineup

Our premium hydraulic fluids are long-life lubricants, with a dramatically longer oxidation stability life (ASTM D943 test) than conventional hydraulic fluids. A longer oxidation stability life equates to longer oil service life, which can improve the customer's bottom line. This level of oxidation stability is especially applicable in high efficiency (high speed, high temperature, high output) applications where reservoirs may be smaller and severe stress is placed on the hydraulic fluid.

CLARITY SYNTHETIC HYDRAULIC OILS AW MEETS OR EXCEEDS THE FOLLOWING INDUSTRY OR MANUFACTURER'S REQUIREMENTS.

? JCMAS HK multi-grade (Meets performance requirements for equipment requiring this OEM specification particularly John Deere Construction and Hitachi excavators) (ISO 32, 46)

? DIN 51524-3 (HVLP, part 3) (ISO 32, 46, 68) ? ISO 11158 L-HV (ISO 32, 46, 68) ? ASTM D6158, HV (ISO 32, 46, 68) ? Eaton-Vickers 35VQ25A, M-2590-S, I-286-S

(ISO 32, 46, 68) ? Fives-MAG Cincinnati, Cincinnati Machine

P-68, P-69, P-70 (ISO 32, 46, 68)

CLARITY HYDRAULIC OIL AW

? JCMAS HK single grade (Hitachi/John Deere Construction) (ISO 32, 46)

? DIN 51524-2 (HLP, part 2) (ISO 32, 46, 68) ? ISO 11158 L-HM (ISO 32, 46, 68) ? ASTM D6158, HM (ISO 32, 46, 68) ? Eaton-Vickers 35VQ25A, M-2590-S, I-286-S

(ISO 32, 46, 68) ? Fives-MAG Cincinnati, Cincinnati Machine

P-68, P-69, P-70 (ISO 32, 46, 68)

RANDO? HDZ

? JCMAS HK multi-grade (Hitachi/John Deere Construction) (ISO 32, 46)

? DIN 51524-3 (HVLP, part 3) (ISO 32, 46, 68) ? ISO 11158 L-HV (ISO 32, 46, 68) ? ASTM D6158, HV (ISO 32, 46, 68) ? Eaton-Vickers 35VQ25A, M-2590-S, I-286-S

(ISO 32, 46, 68) ? Fives-MAG Cincinnati, Cincinnati Machine

P-68, P-69, P-70 (ISO 32, 46, 68)

3

CLARITY? SYNTHETIC HYDRAULIC OIL AW FOR CURRENT GENERATION OF HITACHI-JOHN DEERE EXCAVATORS

Changeover Procedures from Hitachi Genuine Hydraulic Oil Super EX to Clarity Synthetic Hydraulic Oil AW or Clarity Hydraulic Oil AW.

Highlighted below are 3 procedures that provide guidance on transitioning from Hitachi Genuine Hydraulic Oil Super EX 46HN to Clarity Synthetic Hydraulic Oil AW 46 or Clarity Hydraulic Oil AW 46.

Procedure A is considered the "best" and involves a complete drain and flush of the system. With any switch to a new product a complete flush will provide the full benefit of the Clarity Synthetic Hydraulic Oil's performance in the application.

Procedure B is considered "better" and involves just a complete drain and fill. To maximize the use of this option, it is best to drain completely as possible, to maximize the benefits of switching products.

Procedure C involves a top-off until either changeover procedure A or B can be implemented at the next opportunity.

PROCEDURE A ? DRAIN AND FLUSH Step 1. Operate the hydraulic system under normal operating temperature and conditions for minimum of 1 hour. Then shut the hydraulic system down. The lubricant in the system should be warm/hot when initiating the lubricant change.

Step 2. Drain the entire system as best as possible and try to include draining oil in all hoses and lines, hydraulic pump, reservoir, and filters.

General guidelines for any fluid changeover.

? A lways confirm that the product selected is consistent with the OEM recommendations for the application.

? F ollow OEM recommended lubricant flushing and change-out procedures, if available, including all relevant safety precautions.

? P roperly dispose of used oil.

Step 3. Thoroughly clean the hydraulic system if needed. Examine and replace all worn seals. Replace filters and strainers. Flush the system, this process can involve extensive circulation, warm up, drain, flush and filter replacement. In all cases, the manufacturer's change-out and flushing recommendations, including all relevant safety precautions, should be closely followed during the conversion. Flushing with the new fluid is the best approach. If switching hydraulic fluids, Clarity Synthetic Hydraulic Oil AW 46 is the first choice and Clarity Hydraulic Oil AW 46 is the next best choice.

Step 4. Refill the entire system to the correct level with fresh Clarity Synthetic Hydraulic Oil AW 46 and operate system under normal operating conditions. Check the viscosity of the final filled fluid to develop a baseline for in-service monitoring.

4

CLARITY? SYNTHETIC HYDRAULIC OIL AW FOR CURRENT GENERATION OF HITACHI-JOHN DEERE EXCAVATORS

PROCEDURE B ? DRAIN AND FILL Step 1. Operate the hydraulic system under normal operating temperature and conditions for minimum of 1 hour. Then shut the hydraulic system down. The lubricant in the system should be warm/hot when initiating the lubricant change. Step 2. Drain the entire system as best as possible and try to include draining oil in the hoses, lines, hydraulic pump and motor, oil cooler, valves, reservoir, and filters. Examine and replace all worn seals. Replace filters and strainers. Step 3. Refill the entire system to the correct level with fresh Clarity Synthetic Hydraulic Oil AW 46 and operate system under normal operating conditions. Step 4. Monitor the system and check the final viscosity of the fluid after change-out. It is possible after change-out that the filters may need an earlier replacement than expected depending on the previous fluid used.

PROCEDURE C ? TOP-OFF Add new oil on top of in-service oil. This procedure should be considered only when there is no opportunity to change-out the fluid immediately, but will be implemented at the next immediate opportunity.

For all the change-out procedures, after the oil change-out, it is recommended to routinely monitor the hydraulic operation and filter life, closely monitor and evaluate the oil condition on a periodic basis to ensure proper performance, and take any corrective action that may be needed, including changing filters. For additional information, please refer to Technical Bulletin LTB-47 Hydraulic Fluid Changeover Procedure.

5

Download