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Make
KOMATSU
Model
WB91R-2 (S/N 91F20250 & up) (WB 2 Series Backhoe)
Engine
D / DT

Application
Recommendation
Capacity (gal)
Data Sheet
Sales Sheet
Engine (D / DT) (Komatsu 4D106-2SFA, 61kW)
Superlube TMS SAE 10W-30
(a, b)
2.09
PDS
Transmission
Ultra Premium
Maxtron Multi- Vehicle ATF Low Vis
5.28 / 4.49
Premium
Auto Gold Multi-Vehicle ATF
PDS
Mainline
Maxtron ATF SS8
Front Differential
Ultra Premium
Maxtron THF +
(c)
1.72
PDS
Premium
Qwiklift HTB
PDS
Rear Differential
Ultra Premium
Maxtron THF +
(d)
3.83
PDS
Premium
Qwiklift HTB
PDS
Coolant
Refer to Technical
3.96
Brake System
Ultra Premium
Maxtron Multi- Vehicle ATF Low Vis
0.211
Premium
Auto Gold Multi-Vehicle ATF
PDS
Mainline
Maxtron ATF SS8
Hydraulics
Premium
Maxtron DEO SAE 10W-30
(e)
39.6 / 24.3
PDS
Mainline
Superlube TMS SAE 10W-30
PDS
Grease Points
Maxtron EP NLGI 2
PDS
Front Reduction Hubs (each)
Ultra Premium
Maxtron THF +
(f)
0.264
PDS
Premium
Qwiklift HTB
PDS
Rear Reduction Hubs (each)
Ultra Premium
Maxtron THF +
(g)
0.396
PDS
Premium
Qwiklift HTB
PDS
Engine (D / DT) (Komatsu 4D106-2SFA, 61kW)
Recommendation:
Mainline Superlube TMS SAE 10W-30
(a, b)
Capacity 2.09(gal)
Transmission
Recommendation:
Ultra Premium Maxtron Multi- Vehicle ATF Low Vis
Premium Auto Gold Multi-Vehicle ATF
Mainline Maxtron ATF SS8
Capacity 5.28 / 4.49(gal)
Front Differential
Recommendation:
Ultra Premium Maxtron THF +
Premium Qwiklift HTB
(c)
Capacity 1.72(gal)
Rear Differential
Recommendation:
Ultra Premium Maxtron THF +
Premium Qwiklift HTB
(d)
Capacity 3.83(gal)
Coolant
Recommendation:
Ultra Premium Refer to Technical
Capacity 3.96(gal)
Brake System
Recommendation:
Ultra Premium Maxtron Multi- Vehicle ATF Low Vis
Premium Auto Gold Multi-Vehicle ATF
Mainline Maxtron ATF SS8
Capacity 0.211(gal)
Hydraulics
Recommendation:
Premium Maxtron DEO SAE 10W-30
Mainline Superlube TMS SAE 10W-30
(e)
Capacity 39.6 / 24.3(gal)
Grease Points
Recommendation:
Premium Maxtron EP NLGI 2
Front Reduction Hubs (each)
Recommendation:
Ultra Premium Maxtron THF +
Premium Qwiklift HTB
(f)
Capacity 0.264(gal)
Rear Reduction Hubs (each)
Recommendation:
Ultra Premium Maxtron THF +
Premium Qwiklift HTB
(g)
Capacity 0.396(gal)

General Notes

There are no notes to display for this model

Lubricant / Capacity Notes

a.
32°F to 113°F
b.
Alternative recommendations, -4°F to 50°F: Refer to Technical
c.
Alternative recommendations: Refer to Technical
d.
Alternative recommendations: Refer to Technical
e.
-4°F to 113°F
f.
Alternative recommendations: Refer to Technical
g.
Alternative recommendations: Refer to Technical

Oil Change Intervals

Engine (D / DT) (Komatsu 4D106-2SFA, 61kW)
Hours Max
500
Transmission
Hours Max
1000
Front Differential
Hours Max
1000
Rear Differential
Hours Max
1000
Coolant
Hours Max
2000
Brake System
Hours Max
2000
Hydraulics
Hours Max
2000
Front Reduction Hubs (each)
Hours Max
1000
Rear Reduction Hubs (each)
Hours Max
1000